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  • ✇IEEE Spectrum
  • Optical Metasurfaces Shine a Light on Li-Fi, LidarMargo Anderson
    A new, tunable smart surface can transform a single pulse of light into multiple beams, each aimed in different directions. The proof-of-principle development opens the door to a range of innovations in communications, imaging, sensing, and medicine.The research comes out of the Caltech lab of Harry Atwater, a professor of applied physics and materials science, and is possible due to a type of nano-engineered material called a metasurface. “These are artificially designed surfaces which basicall
     

Optical Metasurfaces Shine a Light on Li-Fi, Lidar

15. Srpen 2024 v 16:00


A new, tunable smart surface can transform a single pulse of light into multiple beams, each aimed in different directions. The proof-of-principle development opens the door to a range of innovations in communications, imaging, sensing, and medicine.

The research comes out of the Caltech lab of Harry Atwater, a professor of applied physics and materials science, and is possible due to a type of nano-engineered material called a metasurface. “These are artificially designed surfaces which basically consist of nanostructured patterns,” says Prachi Thureja, a graduate student in Atwater’s group. “So it’s an array of nanostructures, and each nanostructure essentially allows us to locally control the properties of light.”

The surface can be reconfigured up to millions of times per second to change how it is locally controlling light. That’s rapid enough to manipulate and redirect light for applications in optical data transmission such as optical space communications and Li-Fi, as well as lidar.

“[The metasurface] brings unprecedented freedom in controlling light,” says Alex M.H. Wong, an associate professor of electrical engineering at the City University of Hong Kong. “The ability to do this means one can migrate existing wireless technologies into the optical regime. Li-Fi and LIDAR serve as prime examples.”

Metasurfaces remove the need for lenses and mirrors

Manipulating and redirecting beams of light typically involves a range of conventional lenses and mirrors. These lenses and mirrors might be microscopic in size, but they’re still using optical properties of materials like Snell’s Law, which describes the progress of a wavefront through different materials and how that wavefront is redirected—or refracted—according to the properties of the material itself.

By contrast, the new work offers the prospect of electrically manipulating a material’s optical properties via a semiconducting material. Combined with nano-scaled mirror elements, the flat, microscopic devices can be made to behave like a lens, without requiring lengths of curved or bent glass. And the new metasurface’s optical properties can be switched millions of times per second using electrical signals.

“The difference with our device is by applying different voltages across the device, we can change the profile of light coming off of the mirror, even though physically it’s not moving,” says paper co-author Jared Sisler—also a graduate student in Atwater’s group. “And then we can steer the light like it’s an electrically reprogrammable mirror.”

The device itself, a chip that measures 120 micrometers on each side, achieves its light-manipulating capabilities with an embedded surface of tiny gold antennas in a semiconductor layer of indium tin oxide. Manipulating the voltages across the semiconductor alters the material’s capacity to bend light—also known as its index of refraction. Between the reflection of the gold mirror elements and the tunable refractive capacity of the semiconductor, a lot of rapidly-tunable light manipulation becomes possible.

“I think the whole idea of using a solid-state metasurface or optical device to steer light in space and also use that for encoding information—I mean, there’s nothing like that that exists right now,” Sisler says. “So I mean, technically, you can send more information if you can achieve higher modulation rates. But since it’s kind of a new domain, the performance of our device is more just to show the principle.”

Metasurfaces open up plenty of new possibilities

The principle, says Wong, suggests a wide array of future technologies on the back of what he says are likely near-term metasurface developments and discoveries.

“The metasurface [can] be flat, ultrathin, and lightweight while it attains the functions normally achieved by a series of carefully curved lenses,” Wong says. “Scientists are currently still unlocking the vast possibilities the metasurface has available to us.

“With improvements in nanofabrication, elements with small feature sizes much smaller than the wavelength are now reliably fabricable,” Wong continues. “Many functionalities of the metasurface are being routinely demonstrated, benefiting not just communication but also imaging, sensing, and medicine, among other fields... I know that in addition to interest from academia, various players from industry are also deeply interested and making sizable investments in pushing this technology toward commercialization.”

  • ✇Gnome Stew
  • The Social Contract of PlanningPhil Vecchione
    Planning in RPGs is not a fun activity, so don’t do it. Planning in RPGs is necessary so that we don’t get our characters killed. Both of those statements are true. The optimal way planning should work in your game is somewhere in the middle of those two statements. The optimal way is a combination of genre and play style. And if we were to discuss what that looked like up front, we could define how much planning was necessary for the game we were playing, so that our games had the right amount
     

The Social Contract of Planning

28. Červen 2024 v 12:00

Planning in RPGs is not a fun activity, so don’t do it.
Planning in RPGs is necessary so that we don’t get our characters killed.
Both of those statements are true.

The optimal way planning should work in your game is somewhere in the middle of those two statements. The optimal way is a combination of genre and play style. And if we were to discuss what that looked like up front, we could define how much planning was necessary for the game we were playing, so that our games had the right amount of planning, minimizing the un-fun-ness (take that Bob, our editor), and making it effective enough to keep the characters alive (at least most of them). Let’s talk about how to do that.

Is Planning Un-Fun?

I think so, and I say that as a person whose day job is planning things, and outside of work I plan everything else in my life. In RPGs, planning is just not that fun of an activity. It often consists of the table coming up with ideas and then saying “…but what about this?” going around and around in circles. If you are a player participating in the process, it can be a bit draining, but if you are the GM, waiting for the players to come up with a plan, then you are just sitting there on the outside. It is not how I want to spend my gaming time.

Is Planning Necessary?

Having a plan is a good idea because it aligns the group in terms of their goal and how they are going to achieve it. It allows the group the time to figure out how to best use their resources (equipment, powers, etc). These things greatly increase the group’s chances of being successful and surviving. 

The Components of a Plan

Let’s take a few moments and discuss what makes up a plan. A good plan has all of these, and lesser plans lack detail or are missing some of these parts: 

  • The Goal/Objective – A plan must have an objective. What are we doing? This goal should be shared by the entire group. Are you going in to steal the money? Or are you here to rescue your ex-wife from the Prince? If you are not on the same page about the goal, the group may pursue different goals, split up their resources, or at worse come into conflict.
  • Milestones – The smaller objectives you need to achieve to build up to the goal. It could be disarming the alarm system, or stealing a key from the guard. Some milestones will be in temporal order while others may occur at any time.
  • Information/Intelligence – plans run on information. You can’t plan if you don’t know where you are going, what to expect, how many guards, the terrain around the location, etc. When you lack information you start to make guesses (see below).
  • Risks – Risks are the things you don’t know but think are possible. Risks can be things like a hidden alarm system. Or something like, “What if we can’t take out the guards quietly?” In addition, Risks have a probability (how likely they are to occur) and an impact (how big of a problem it is when they come true). A lot of people who are bad with risks spend too much time worrying about how to handle low probability/high impact risks over high probability/lower impact risks. 
  • Mitigation and Contingencies – Hand in hand with risks are Mitigations (how do we make risk less likely to occur — lower probability) and Contingencies (what do we do if that risk comes true — lower the impact). You can manage neither, one, or both of these. The trick is deciding for each risk what you want to manage. 

This is why Planning is difficult and may not be fun. It is a lot to manage and done well it takes time – time that you are not playing the game. 

The Trust Issue 

The reason that people tend to over-plan is that they fear that there is some piece of information that if the players knew before they put their plan into action, would ensure the success of the goal or prevent excessive harm/death to the characters. To combat this, players do one or both of the following: 

  • Collect as much information/intelligence as possible; at times to excess. 
  • Perform excessive Risk mitigation — naming risks, and coming up with mitigations and contingencies. 

In fact, as a GM, you will know this is happening in the game when these two actions take over the session. When characters feel like they know enough, is when they are ready to switch from planning to action. 

Genre and Playstyle

Before we get to the social contract part of this… we need to discuss two more things. 

Some Genres have plans as one of the tropes. If you are running a game about thieves and heists, or a military game about Spec Ops missions, then those genres require some degree of planning. These games are also best served by mechanics that help compensate for suboptimal planning or help mitigate the lack of planning that occurs at the table. Look at how Blades in the Dark and other Forged in the Dark games remove the need for extensive planning by using mechanics to simulate good planning done by the characters rather than the players.

The other thing is play-style. Some groups get off on playing the cat and mouse game, where the GM comes up with a plan and twists and the players face off to come up with a plan to outsmart the GM. Others want nothing to do with planning. Whatever brings your entire group joy, then there is no wrong-bad-fun, as long as you all, as a group are on the same page.

The Social Contract of Planning

 The truth is that not all RPGs need the same level of planning, but unless you establish that fact, most players will assume they do. 

The truth is that not all RPGs need the same level of planning, but unless you establish that fact, most players will assume they do. 

Some genres do not lean into detailed plans. Superhero games often rely on bold action and powers to overcome problems, not intricate plans. Pulp games also favor action over plans as well. So as you establish your game, consider what the genre and your setting should favor and then combine that with your play style. 

An example: My players had recently finished a Night’s Black Agents campaign. It was a game where planning was key, and the game had some mechanics to support planning. The players knew not to move from planning to action until they had enough intel. They would sometimes spend a session collecting intel and making a plan. Currently, we are playing Mutants in the Now, a game inspired by the Teenage Mutant Ninja Turtles game and comic. In our most recent session, the players were working on a plan for how to attack a Yakuza hotel where some mutant animals were being trafficked. They started to work on a plan worthy of Night’s Black Agents when I reminded them that this game was more action-based. They quickly simplified their plan to “We rappel to the top of the hotel and fight our way to the bottom while rescuing the other mutant animals along the way”. A perfect plan for the setting and genre. 

The key to having players not over-plan is trust between GM and the player. As the GM, I am telling the players that I am not going to punish them for choosing a simple plan. For the players, it is trusting that I am not withholding some key piece of information that would break their simple plan. 

That is not to say you cannot have a twist. The twist is a time-honored trope in all plans. The twist is the unexpected thing that the players have to deal with in the middle of executing the plan which can cause the plan to alter it on the fly. The difference is that what I am promising, as GM, is that the twist will not up-end or thwart the plan. Rather it will be a fun surprise that the characters can deal with.

This is the social contract of planning as a group, for the game you are running (genre and mechanics) and the way you like to play (style). Agree with how much planning is necessary for this game, in general. You can come up with things like this:

  • This game is about a sci-fi Spec Ops team, and the mechanics are gritty, you are going to want to have a good plan before executing an operation. 
  • This game is about mutant animals fighting other mutant animals and criminals, you don’t need more than a simple plan, as most things you encounter are going to be resolved by fighting.

By doing this you are creating expectations for the whole group on how you should handle planning. This is the social contract that you agree to and guides how you play. Establish this in Session Zero and you can set the tone for planning in your campaign, and help keep planning to exactly what it needs to be for your game.

A quick note. Even after you establish a level of planning as part of your game, you can have a story where you change the amount of planning for that session. All you have to do is indicate to the players the change so that they can reset their expectations.. 

Plan Out Your Planning

Planning is not always fun in games, and it can be worse if you are over or under-planning based on the game you are running. But like most things in RPGs, if we do some upfront communication and set some expectations we can dial in planning to just the right amount for the game we are playing. 

This expectation along with any planning mechanics that the game provides can make planning far less tedious while being effective, and make for an overall play experience. 

How do you handle planning in your games? How do you set those expectations with your players? What planning tools do you use or what planning mechanics do you employ?

  • ✇Boing Boing
  • Usha Vance defends husband's weird "cat ladies" insult on Fox NewsEllsworth Toohey
    Usha Vance appeared on Fox News yesterday in a prerecorded interview with Fox & Friends co-host Ainsley Earhardt. Poised and prepared, Vance answered a few softball questions until about seven minutes in, when Earhardt brought up by her husband's weird 2021 claim that "We are effectively run in this country, via the Democrats, via our corporate oilgarchs, by a bunch of childless cat ladies who are miserable at their own lives and the choices that they've made, and so they wanna make the rest
     

Usha Vance defends husband's weird "cat ladies" insult on Fox News

5. Srpen 2024 v 21:06
JD Vance's wife, Usha, interviewed on Fox News, Aug 5, 2024 (Screenshot)

Usha Vance appeared on Fox News yesterday in a prerecorded interview with Fox & Friends co-host Ainsley Earhardt. Poised and prepared, Vance answered a few softball questions until about seven minutes in, when Earhardt brought up by her husband's weird 2021 claim that "We are effectively run in this country, via the Democrats, via our corporate oilgarchs, by a bunch of childless cat ladies who are miserable at their own lives and the choices that they've made, and so they wanna make the rest of the country miserable, too. — Read the rest

The post Usha Vance defends husband's weird "cat ladies" insult on Fox News appeared first on Boing Boing.

The best smartphones to buy in 2024

You might have an idea of which smartphone you want to buy next. But there are more options than ever before that are solid — plenty of companies are making stellar handsets nowadays, at similar prices, all with comparable feature sets. That said, the choice isn’t always cut-and-dry. If you know you want an iPhone, your decision-making process is a bit easier. If you’re an Android person, you have even more options to choose from and more questions to answer before you spend any money. At Engadget, we review phones regularly and have tested dozens over the years; so far for 2024, our top picks remain the same as they were last year, with Apple's iPhone 15 Pro and Google's Pixel 8 handsets sitting at the top of the list. Whether you’ve had your eye on them, one of Samsung's new Galaxy S24 phones or another device, we’re here to help you decide which is the best phone to buy this year.

Android or iOS?

When you're searching for the best smartphone, it becomes clear that each OS has its pros and cons. Apple’s tight-knit ecosystem makes it super easy to share data between iPhones, iPads and Macs or seamlessly hand-off phone calls or music from one device to another. At the same time, you’re effectively locked in, as services like Apple Messages aren’t available on other platforms.

As for Android, there’s a much wider range of handsets from companies like Google, Samsung, Sony and more. However, Android phones don’t enjoy that same length of software support and often have lower trade-in values. In short, there’s no wrong answer. However, you will want to consider how your phone will fit in with the rest of your devices. So unless you’re really fed up with one OS and willing to learn another, it probably doesn’t make a lot of sense to switch from an iPhone to an Android phone (or vice versa) – especially if everyone else in your household is using the same platform.

Cameras

Since your cell phone often pulls double duty as your primary camera, figuring out what kind of photo tools you want is key. Nowadays, practically every mobile phone can take a great picture in bright light. But if you want a long optical zoom, you’ll probably have to upgrade to a more expensive device.

Close up of the Pixel 6 Pro's camera bump.
Cherlynn Low / Engadget

Mid-range phones often only have two rear cameras (a primary wide-angle lens and a secondary ultra-wide camera) and can sometimes struggle in low-light situations. Each phone maker also has various features that might be a better fit for your style, with Apple offering four different color presets on the latest iPhones, while Google’s Pixel 8 comes with neat tools like dedicated long exposure and Action Pan modes.

Will you get mmWave 5G or Wi-Fi 7?

The good news is that in 2024, most phones have at least Wi-Fi 6 or Wi-Fi 6e and support for some kind of 5G connectivity. However, if you want the fastest wireless speeds possible, it’s going to cost you a little extra. For example, on certain networks, mmWave 5G offers up to gigabit download speeds, less latency and better bandwidth. But mmWave 5G also requires more sophisticated (and pricier) modems, which means support for it is often missing on less expensive devices, even those like the unlocked version of the Pixel 8.

On the bright side, mmWave 5G isn’t as widely available as other versions of 5G, so depending on where you live and what network you’re on, you may not be missing out on much right now if you buy a phone that doesn’t support it. It’s a similar situation for Wi-Fi 7, which is available on some high-end handsets like the Galaxy S24, but harder to find on cheaper devices. Wi-Fi 7 also requires you to have a compatible router, so unless you know you need it or have a specific use case in mind, the lack of support for mmWave 5G or Wi-Fi 7 shouldn’t be a dealbreaker when looking for a new phone.

Other features to consider

Because not everyone agrees on what makes the best phone, you should think about any other specs that might be extra important for you. Mobile gamers will almost certainly appreciate the 120Hz refresh rates you get on phones like the Samsung Galaxy S23 or the Apple iPhone 15 Pro. Alternatively, if long battery life is important, you’ll probably want to go with a larger iPhone or an Android phone with a battery that’s between 4,000 and 5,000 mAh in size. Meanwhile, if you find yourself juggling a lot of devices, it can be really nice to have a phone that supports reverse wireless charging, which on Samsung phones even lets you recharge the company’s Galaxy Watches.

Other smartphones we've tested

Samsung Galaxy S24 Ultra

For its latest super-premium phone, Samsung gave the S24 Ultra a more durable titanium frame, faster performance thanks to a Snapdragon 8 Gen 3 chip and a much longer battery life. The company also tweaked its longest telephoto lens with a 5x optical zoom so it's more usable in a wider range of situations. But the biggest upgrade is a new full suite of AI tools, which includes the ability to proofread texts, edit images and transcribe recordings. And when you tack on the best display available on a phone today and a built-in stylus, you have a very compelling flagship handset. Unfortunately, starting at $1,300, the S24 Ultra is a bit too expensive to recommend to anyone without deep pockets.

OnePlus 12

While the OnePlus 12 wasn’t able to unseat the latest Pixel, it’s worth mentioning because it offers powerful specs for the money. It features a speedy Snapdragon 8 Gen 3 chip, a big and bright 6.8-inch, 120Hz OLED screen and the best battery life we’ve seen on any phone to date. OnePlus also brought back support for wireless charging for the first time in several generations, along with a good (but not great) IP65 rating for dust and water resistance. And even though its huge camera module looks a bit ungainly, its photos are surprisingly sharp. But the best thing is that, with a starting price of $800, the OnePlus 12 costs $200 less than a Pixel 8 Pro or a similarly specced S24+.

FAQs

How do I know which smartphone is the best for me?

While choosing the best smartphone can be challenging, it mostly comes down to how you plan on using the device. All of the best phones available now get the basics right — you’ll be able to make calls, text and access the internet without many hiccups. If your smartphone is your most used gadget, you may want to consider paying for a device on the higher end of the price spectrum. That will get you better overall performance, higher-quality cameras and a phone that will last for many years. If you don’t use your phone for everything, you may be able to compromise on performance and extra perks and spend less on a still-capable handset.

How much is a smartphone?

Smartphones range in price from $300 to over $1,500. The best budget phones available now will usually compromise on overall performance, design, camera prowess and extra features to keep costs down. On the flip side, the most expensive phones will have powerful processors, triple-camera arrays and even flip or fold designs. Most people will find a phone that fits their needs somewhere in the middle of that wide price range — we’ve found that most of the best smartphones available right now cost between $500 and $1,000.

What can you do on a smartphone?

Smartphones are essentially small, portable computers that let you do things like check email, browse social media, follow map directions, make contactless payments and more. This is all on top of the basics like making phone calls and texting, which we’ve come to expect in all modern cell phones. Smartphones have also mostly replaced compact cameras thanks to their high-quality, built-in shooters, and the fact that most smartphones today as just as portable, if not more so, as compact cameras.

How long do smartphones last?

Smartphones can last years and people are holding on to their phones longer now than ever before. Software updates and battery life are two of the biggest factors that can affect phone longevity. Apple promises five years worth of software updates for its latest iPhones, and Google promises the same for its Pixel phones. Samsung phones will get four years worth of Android updates from the time they launch. As for charging speeds and battery life, your phone can deteriorate over time as you use and recharge your phone on a regular basis.

This article originally appeared on Engadget at https://www.engadget.com/best-smartphones-140004900.html?src=rss

© Engadget

The best smartphones
  • ✇IEEE Spectrum
  • Vodafone Launches Private 5G Tech to Compete With Wi-FiMargo Anderson
    As the world’s 5G rollout continues with its predictable fits and starts, the cellular technology is also starting to move into a space already dominated by another wireless tech: Wi-Fi. Private 5G networks—in which a person or company sets up their own facility-wide cellular network—are today finding applications where Wi-Fi was once the only viable game in town. This month, the Newbury, England–based telecom company Vodafone is releasing a Raspberry Pi–based private 5G base station that it is
     

Vodafone Launches Private 5G Tech to Compete With Wi-Fi

20. Červen 2024 v 17:01


As the world’s 5G rollout continues with its predictable fits and starts, the cellular technology is also starting to move into a space already dominated by another wireless tech: Wi-Fi. Private 5G networks—in which a person or company sets up their own facility-wide cellular network—are today finding applications where Wi-Fi was once the only viable game in town. This month, the Newbury, England–based telecom company Vodafone is releasing a Raspberry Pi–based private 5G base station that it is now being aimed at developers, who might then jump-start a wave of private 5G innovation.

“The Raspberry Pi is the most affordable CPU[-based] computer that you can get,” says Santiago Tenorio, network architecture director at Vodafone. “Which means that what we build, in essence, has a similar bill of materials as a good quality Wi-Fi router.”

The company has teamed with the Surrey, England–based Lime Microsystems to release a crowd-funded range of private 5G base-station kits ranging in price from US $800 to $12,000.

“In a Raspberry Pi—in this case, a Raspberry Pi 4 is what we used—then you can be sure you can run that anywhere, because it’s the tiniest processor that you can have,” Tenorio says.

a person holding a black box in their hand Santiago Tenorio holds one of Lime Microsystems’ private 5G base-station kits.Vodafone

Private 5G for Drones and Bakeries

There are a range of reasons, Tenorio says, why someone might want their own private 5G network. At the moment, the scenarios mostly concern companies and organizations—although individual expert users could still be drawn to, for instance, 5G’s relatively low latency and network flexibility.

Tenorio highlighted security and mobility as two big selling points for private 5G.

A commercial storefront business, for instance, might be attracted to the extra security protections that a SIM card can provide compared to password-based wireless network security. Because each SIM card contains its own unique identifier and encryption keys, thereby also enabling a network to be able to recognize and authorize each individual connection, Tenorio says private 5G network security is a considerable selling point.

Plus, Tenorio says, it’s simpler for customers to access. Envisioning a use case of a bakery with its own privately deployed 5G network, he says, “You don’t need a password. You don’t need a conversation [with a clerk behind a counter] or a QR code. You simply walk into the bakery, and you are into the bakery’s network.”

As to mobility, Tenorio suggests one emergency relief and rescue application that might rely on the presence of a nearby 5G station that causes devices in its range to ping.

Setting up a private 5G base station on a drone, Tenorio says, would enable that drone to fly over a disaster area and, via its airborne network, send a challenge signal to all devices in its coverage area to report in. Any device receiving that signal with a compatible SIM card then responds with its unique identification information.

“Then any phone would try to register,” Tenorio says. “And then you would know if there is someone [there].”

Not only that, but because the ping would be from a device with a SIM card, the private 5G rescue drone in the above scenario could potentially provide crucial information about each individual, just based on the device’s identifier alone. And that user-identifying feature of private 5G isn’t exactly irrelevant to a bakery owner—or to any other commercial customer—either, Tenorio says.

“If you are a bakery,” he says, “You could actually know who your customers are, because anyone walking into the bakery would register on your network and would leave their [International Mobile Subscriber Identity].”

Winning the Lag Race

According to Christian Wietfeld, professor of electrical engineering at the Technical University of Dortmund in Germany, private 5G networks also bring the possibility of less lag. His team has tested private 5G deployments—although, Wietfeld says that they haven’t yet tested the present Vodafone/Lime Microsystem base station—and have found private 5G to provide reliably better connectivity.

Wietfeld’s team will present their research at the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications in September in Valencia, Spain. They found that private 5G can deliver connections up to 10 times as fast as connections in networks with high loads, compared to Wi-Fi (the IEEE 802.11 wireless standard).

“The additional cost and effort to operate a private 5G network pays off in lower downtimes of production and less delays in delivery of goods,” Wietfeld says. “Also, for safety-critical use cases such as on-campus teleoperated driving, private 5G networks provide the necessary reliability and predictability of performance.”

For Lime Networks, according to the company’s CEO and founder Ebrahim Bushehri, the challenge comes in developing a private 5G base station that maximized versatility and openness to whatever kinds of applications developers could envision—while still being reasonably inexpensive and retaining a low-power envelope.

“The solution had to be ultraportable and with an optional battery pack which could be mounted on drones and autonomous robots, for remote and tactical deployments, such as emergency-response scenarios and temporary events,” Bushehri says.

Meanwhile, the crowdfunding behind the device’s rollout, via the website Crowd Supply, allows both companies to keep tabs on the kinds of applications the developer community is envisioning for this technology, he says.

“Crowdfunding,” Bushehri says, “Is one of the key indicators of community interest and engagement. Hence the reason for launching the campaign on Crowd Supply to get feedback from early adopters.”

  • ✇IEEE Spectrum
  • This Japanese Aircraft Became a 5G Base StationTim Hornyak
    Skies over Tokyo are thick with air traffic these days amid an influx of international tourists. But one plane recently helped revive the dream of airborne Internet access for all. Researchers in Japan announced on 28 May that they have successfully tested 5G communications equipment in the 38 gigahertz band from an altitude of 4 kilometers.The experiment was aimed at developing an aerial relay backhaul with millimeter-wave band links between ground stations and a simulated High-Altitude Platfor
     

This Japanese Aircraft Became a 5G Base Station

6. Červen 2024 v 16:51


Skies over Tokyo are thick with air traffic these days amid an influx of international tourists. But one plane recently helped revive the dream of airborne Internet access for all. Researchers in Japan announced on 28 May that they have successfully tested 5G communications equipment in the 38 gigahertz band from an altitude of 4 kilometers.

The experiment was aimed at developing an aerial relay backhaul with millimeter-wave band links between ground stations and a simulated High-Altitude Platform Station (HAPS), a radio station aboard an uncrewed aircraft that stays aloft in the stratosphere for extended periods of time. A Cessna flying out of Chofu Airfield in western Tokyo was outfitted with a 38 GHz 5G base station and core network device, and three ground stations were equipped with lens antennas with automatic tracking.

With the Cessna as a relay station, the setup enabled communication between one ground station connected to the 5G terrestrial network and a terrestrial base station connected to a user terminal, according to a consortium of Japanese companies and the National Institute of Information and Communications Technology.

“We developed technology that enables communication using 5G [New Radio] by correctly directing 38 GHz beams toward three ground stations while adapting to the flight attitude, speed, direction, position, altitude, etc. during aircraft rotation,” said Shinichi Tanaka, a manager in broadcaster SKY Perfect JSAT’s Space Business Division. “We confirmed that the onboard system, designed for the stratosphere, has adequate communication and tracking performance even under the flight speed and attitude fluctuations of a Cessna aircraft, which are more severe than those of HAPS.”

The sharpest beam width of the ground station antenna is 0.8 degrees, and the trial demonstrated a tracking method that always captures the Cessna in this angular range, Tanaka added.

A diagram with photos shows Cessna in the air alongside a photo of the onboard antenna, as well as a ground station consisting of a platform with antennas. A Cessna [top left] carried a 38 GHz antenna [top right] during a flight, functioning as a 5G base station for receivers on the ground [bottom right]. The plane was able to connect to multiple ground stations at once [illustration, bottom left].NTT Docomo

Millimeter wave bands, such as the 38 GHz band, have the highest data capacity for 5G and are suited for crowded venues such as stadiums and shopping centers. When used outdoors, however, the signals can be attenuated by rain and other moisture in the atmosphere. To counter this, the consortium successfully tested an algorithm that automatically switches between multiple ground stations to compensate for moisture-weakened signals.

Unlike Google’s failed Loon effort, which focused on providing direct communication to user terminals, the HAPS trial is aimed at creating backhaul lines for base stations. Led by Japan’s Ministry of Internal Affairs and Communications, the experiment is designed to deliver high-speed, high-capacity communications both for the development of 5G and 6G networks as well as emergency response. The latter is critical in disaster-prone Japan—in January, communication lines around the Noto Peninsula on the Sea of Japan were severed following a magnitude-7 earthquake that caused over 1,500 casualties.

“This is the world’s first successful 5G communication experiment via the sky using the Q-band frequency,” said Hinata Kohara, a researcher with mobile carrier NTT Docomo’s 6G Network Innovation Department. “In addition, the use of 5G communication base stations and core network equipment on the aircraft for communication among multiple ground stations enables flexible and fast route switching of the ground [gateway] station for a feeder link, and is robust against propagation characteristics such as rainfall. Another key feature is the use of a full digital beamforming method for beam control, which uses multiple independent beams to improve frequency utilization efficiency.”

Doppler shift compensation was a challenge in the experiment, Kohara said, adding that the researchers will conduct further tests to find a solution with the aim of commercializing a HAPS service in 2026. Aside from SKY Perfect JSAT and NTT Docomo, the consortium includes Panasonic Holdings, known for its electronics equipment.

The HAPS push comes as NTT Docomo announced it has led another consortium in a $100 million investment in Airbus’ AALTO HAPS, operator of the Zephyr fixed-wing uncrewed aerial vehicle. The solar-powered wing can be used for 5G direct-to-device communications or Earth observation, and has set records including 64 days of stratospheric flight. According to Airbus, it has a reach of “up to 250 terrestrial towers in difficult mountainous terrain.” Docomo said the investment is aimed at commercializing Zephyr services in Japan, including coverage of rural areas and disaster zones, and around the world in 2026.

AT&T deal will make every phone a satellite phone

Soon, AT&T subscribers will have the option to ensure that they have access to cell service even in typical dead zones, like deep inside national parks or far-flung rural locations. The mobile carrier has been working with AST SpaceMobile since 2018 under a Memorandum of Understanding, helping the latter test two-way audio calls, texts and video calls via satellites in space using ordinary smartphones. Now, the companies have entered a definitive commercial agreement, which means AT&T is getting close to offering subscribers the capability to transform their regular phones into legit satellite devices.

Phones need to be close enough to cell towers to be able to get any sort of service. That's why people aren't usually able to call their families, or even text them, when they're in a forest or in the mountains. AT&T's satellite-to-phone service will use satellites as cell towers, and since they're placed in orbit, they're able to provide connectivity even in remote areas.

The companies have reached an agreement just in time for a rocket launch this summer that will ferry five commercial AST satellites to space. Those satellites will enable AT&T to roll out its service and are just the first ones in the company's planned constellation. Unfortunately, AT&T has yet to reveal a specific rollout date for the service, and it's also unclear if it will charge extra for the capability.

Last year, AT&T wrote the FCC to raise concerns about a similar satellite-to-phone technology T-Mobile and SpaceX's Starlink are working on. The two companies formed an alliance in 2022, promising to provide users with a service that they'll be able to access even if they're in the middle of the ocean. SpaceX launched the first Starlink satellites with direct-to-cell service capability in January 2024, and the companies sent and received the first text messages via T-Mobile using the satellites a week later. The carrier said it's planning to offer satellite-based texting to the public sometime this year.

This article originally appeared on Engadget at https://www.engadget.com/att-deal-will-make-every-phone-a-satellite-phone-101351590.html?src=rss

© AT&T and AST SpaceMobile

Photo of the Earth from space.
  • ✇Ars Technica - All content
  • Using vague language about scientific facts misleads readersJohn Timmer
    Enlarge Anyone can do a simple experiment. Navigate to a search engine that offers suggested completions for what you type, and start typing "scientists believe." When I did it, I got suggestions about the origin of whales, the evolution of animals, the root cause of narcolepsy, and more. The search results contained a long list of topics, like "How scientists believe the loss of Arctic sea ice will impact US weather patterns" or "Scientists believe Moon is 40 million years
     

Using vague language about scientific facts misleads readers

17. Květen 2024 v 21:00
Using vague language about scientific facts misleads readers

Enlarge

Anyone can do a simple experiment. Navigate to a search engine that offers suggested completions for what you type, and start typing "scientists believe." When I did it, I got suggestions about the origin of whales, the evolution of animals, the root cause of narcolepsy, and more. The search results contained a long list of topics, like "How scientists believe the loss of Arctic sea ice will impact US weather patterns" or "Scientists believe Moon is 40 million years older than first thought."

What do these all have in common? They're misleading, at least in terms of how most people understand the word "believe." In all these examples, scientists have become convinced via compelling evidence; these are more than just hunches or emotional compulsions. Given that difference, using "believe" isn't really an accurate description. Yet all these examples come from searching Google News, and so are likely to come from journalistic outlets that care about accuracy.

Does the difference matter? A recent study suggests that it does. People who were shown headlines that used subjective verbs like "believe" tended to view the issue being described as a matter of opinion—even if that issue was solidly grounded in fact.

Read 14 remaining paragraphs | Comments

  • ✇IEEE Spectrum
  • Startup Sends Bluetooth Into Low Earth OrbitMargo Anderson
    A recent Bluetooth connection between a device on Earth and a satellite in orbit signals a potential new space race—this time, for global location-tracking networks.Seattle-based startup Hubble Network announced today that it had a letter of understanding with San Francisco-based startup Life360 to develop a global, satellite-based Internet of Things (IoT) tracking system. The announcement follows on the heels of a 29 April announcement from Hubble Network that it had established the first Bluet
     

Startup Sends Bluetooth Into Low Earth Orbit

13. Květen 2024 v 21:54


A recent Bluetooth connection between a device on Earth and a satellite in orbit signals a potential new space race—this time, for global location-tracking networks.

Seattle-based startup Hubble Network announced today that it had a letter of understanding with San Francisco-based startup Life360 to develop a global, satellite-based Internet of Things (IoT) tracking system. The announcement follows on the heels of a 29 April announcement from Hubble Network that it had established the first Bluetooth connection between a device on Earth and a satellite. The pair of announcements sets the stage for an IoT tracking system that aims to rival Apple’s AirTags, Samsung’s Galaxy SmartTag2, and the Cube GPS Tracker.

Bluetooth, the wireless technology that connects home speakers and earbuds to phones, typically traverses meters, not hundreds of kilometers (520 km, in the case of Hubble Network’s two orbiting satellites). The trick to extending the tech’s range, Hubble Network says, lies in the startup’s patented, high-sensitivity signal detection system on a LEO satellite.

“We believe this is comparable to when GPS was first made available for public use.” —Alex Haro, Hubble Network

The caveat, however, is that the connection is device-to-satellite only. The satellite can’t ping devices back on Earth to say “signal received,” for example. This is because location-tracking tags operate on tiny energy budgets—often powered by button-sized batteries and running on a single charge for months or even years at a stretch. Tags are also able to perform only minimal signal processing. That means that tracking devices cannot include the sensitive phased-array antennas and digital beamforming needed to tease out a vanishingly tiny Bluetooth signal racing through the stratosphere.

“There is a massive enterprise and industrial market for ‘send only’ applications,” says Alex Haro, CEO of Hubble Network. “Once deployed, these sensors and devices don’t need Internet connectivity except to send out their location and telemetry data, such as temperature, humidity, shock, and moisture. Hubble enables sensors and asset trackers to be deployed globally in a very battery- and cost-efficient manner.”

Other applications for the company’s technologies, Haro says, include asset tracking, environmental monitoring, container and pallet tracking, predictive maintenance, smart agriculture applications, fleet management, smart buildings, and electrical grid monitoring.

“To give you a sense of how much better Hubble Network is compared to existing satellite providers like Globalstar,” Haro says, “We are 50 times cheaper and have 20 times longer battery life. For example, we can build a Tile device that is locatable anywhere in the world without any cellular reception and lasts for years on a single coin cell battery. This will be a game-changer in the AirTag market for consumers.”

Group shot of man in foreground with two men in background standing around a satellite component Hubble Network chief space officer John Kim (left) and two company engineers perform tests on the company’s signal-sensing satellite technology. Hubble Network

The Hubble Network system—and presumably the enhanced Life360 Tags that should follow today’s announcement—use a lower energy iteration of the familiar Bluetooth wireless protocol.

Like its more famous cousin, Bluetooth Low-Energy (BLE) uses the 2.4 gigahertz band—a globally unlicensed spectrum band that many Wi-Fi routers, microwave ovens, baby monitors, wireless microphones, and other consumer devices also use.

Haro says BLE offered the most compelling, supposedly “short-range” wireless standard for Hubble Network’s purposes. By contrast, he says, the long-range, wide-area network LoRaWAN operates on a communications band, 900 megahertz, that some countries and regions regulate differently from others—making a potentially global standard around it that much more difficult to establish and maintain. Plus, he says, 2.4 GHz antennas can be roughly one-third the size of a standard LoRaWAN antenna, which makes a difference when launching material into space, when every gram matters.

Haro says that Hubble Network’s technology does require changing the sending device’s software in order to communicate with a BLE receiver satellite in orbit. And it doesn’t require any hardware modifications of the device, save one—adding a standard BLE antenna. “This is the first time that a Bluetooth chip can send data from the ground to a satellite in orbit,” Haro says. “We require the Hubble software stack loaded onto the chip to make this possible, but no physical modifications are needed. Off-the-shelf BLE chips are now capable of communicating directly with LEO satellites.”

“We believe this is comparable to when GPS was first made available for public use,” Haro adds. “It was a groundbreaking moment in technology history that significantly impacted everyday users in ways previously unavailable.”

What remains, of course, is the next hardest part: Launching all of the satellites needed to create a globally available tracking network. As to whether other companies or countries will be developing their own competitor technologies, now that Bluetooth has been revealed to have long-range communication capabilities, Haro did not speculate beyond what he envisions for his own company’s LEO ambitions.

“We currently have our first two satellites in orbit as of 4 March,” Haro says. “We plan to continue launching more satellites, aiming to have 32 in orbit by early 2026. Our pilot customers are already updating and testing their devices on our network, and we will continue to scale our constellation over the next 3 to 5 years.”

The best smartphones to buy in 2024

You might have an idea of which smartphone you want to buy next. But there are more options than ever before that are solid — plenty of companies are making stellar handsets nowadays, at similar prices, all with comparable feature sets. That said, the choice isn’t always cut-and-dry. If you know you want an iPhone, your decision-making process is a bit easier. If you’re an Android person, you have even more options to choose from and more questions to answer before you spend any money. At Engadget, we review phones regularly and have tested dozens over the years; so far for 2024, our top picks remain the same as they were last year, with Apple's iPhone 15 Pro and Google's Pixel 8 handsets sitting at the top of the list. Whether you’ve had your eye on them, one of Samsung's new Galaxy S24 phones or another device, we’re here to help you decide which is the best phone to buy this year.

Editor’s note (5/8/24): Google has announced the Pixel 8a, its latest midrange smartphone. The 6.1-inch handset starts at $499 and, as expected, takes many of its cues from last year’s flagship Pixel 8 series. We’ll have a full review in the coming days and will update this guide accordingly. For now, you can check out our hands-on preview for more details on what to expect. Google says it’ll continue to sell the Pixel 7a, our current midrange pick, at a reduced price, so it may continue to be worthwhile. Most should hold off until we put the new Pixel through its paces, though.

Android or iOS?

When you're searching for the best smartphone, it becomes clear that each OS has its pros and cons. Apple’s tight-knit ecosystem makes it super easy to share data between iPhones, iPads and Macs or seamlessly hand-off phone calls or music from one device to another. At the same time, you’re effectively locked in, as services like Apple Messages aren’t available on other platforms.

As for Android, there’s a much wider range of handsets from companies like Google, Samsung, Sony and more. However, Android phones don’t enjoy that same length of software support and often have lower trade-in values. In short, there’s no wrong answer. However, you will want to consider how your phone will fit in with the rest of your devices. So unless you’re really fed up with one OS and willing to learn another, it probably doesn’t make a lot of sense to switch from an iPhone to an Android phone (or vice versa) – especially if everyone else in your household is using the same platform.

Cameras

Since your cell phone often pulls double duty as your primary camera, figuring out what kind of photo tools you want is key. Nowadays, practically every mobile phone can take a great picture in bright light. But if you want a long optical zoom, you’ll probably have to upgrade to a more expensive device.

Close up of the Pixel 6 Pro's camera bump.
Cherlynn Low / Engadget

Mid-range phones often only have two rear cameras (a primary wide-angle lens and a secondary ultra-wide camera) and can sometimes struggle in low-light situations. Each phone maker also has various features that might be a better fit for your style, with Apple offering four different color presets on the latest iPhones, while Google’s Pixel 8 comes with neat tools like dedicated long exposure and Action Pan modes.

Will you get mmWave 5G or Wi-Fi 7?

The good news is that in 2024, most phones have at least Wi-Fi 6 or Wi-Fi 6e and support for some kind of 5G connectivity. However, if you want the fastest wireless speeds possible, it’s going to cost you a little extra. For example, on certain networks, mmWave 5G offers up to gigabit download speeds, less latency and better bandwidth. But mmWave 5G also requires more sophisticated (and pricier) modems, which means support for it is often missing on less expensive devices, even those like the unlocked version of the Pixel 8.

On the bright side, mmWave 5G isn’t as widely available as other versions of 5G, so depending on where you live and what network you’re on, you may not be missing out on much right now if you buy a phone that doesn’t support it. It’s a similar situation for Wi-Fi 7, which is available on some high-end handsets like the Galaxy S24, but harder to find on cheaper devices. Wi-Fi 7 also requires you to have a compatible router, so unless you know you need it or have a specific use case in mind, the lack of support for mmWave 5G or Wi-Fi 7 shouldn’t be a dealbreaker when looking for a new phone.

Other features to consider

Because not everyone agrees on what makes the best phone, you should think about any other specs that might be extra important for you. Mobile gamers will almost certainly appreciate the 120Hz refresh rates you get on phones like the Samsung Galaxy S23 or the Apple iPhone 15 Pro. Alternatively, if long battery life is important, you’ll probably want to go with a larger iPhone or an Android phone with a battery that’s between 4,000 and 5,000 mAh in size. Meanwhile, if you find yourself juggling a lot of devices, it can be really nice to have a phone that supports reverse wireless charging, which on Samsung phones even lets you recharge the company’s Galaxy Watches.

Other smartphones we've tested

Samsung Galaxy S24 Ultra

For its latest super-premium phone, Samsung gave the S24 Ultra a more durable titanium frame, faster performance thanks to a Snapdragon 8 Gen 3 chip and a much longer battery life. The company also tweaked its longest telephoto lens with a 5x optical zoom so it's more usable in a wider range of situations. But the biggest upgrade is a new full suite of AI tools, which includes the ability to proofread texts, edit images and transcribe recordings. And when you tack on the best display available on a phone today and a built-in stylus, you have a very compelling flagship handset. Unfortunately, starting at $1,300, the S24 Ultra is a bit too expensive to recommend to anyone without deep pockets.

OnePlus 12

While the OnePlus 12 wasn’t able to unseat the latest Pixel, it’s worth mentioning because it offers powerful specs for the money. It features a speedy Snapdragon 8 Gen 3 chip, a big and bright 6.8-inch, 120Hz OLED screen and the best battery life we’ve seen on any phone to date. OnePlus also brought back support for wireless charging for the first time in several generations, along with a good (but not great) IP65 rating for dust and water resistance. And even though its huge camera module looks a bit ungainly, its photos are surprisingly sharp. But the best thing is that, with a starting price of $800, the OnePlus 12 costs $200 less than a Pixel 8 Pro or a similarly specced S24+.

FAQs

How do I know which smartphone is the best for me?

While choosing the best smartphone can be challenging, it mostly comes down to how you plan on using the device. All of the best phones available now get the basics right — you’ll be able to make calls, text and access the internet without many hiccups. If your smartphone is your most used gadget, you may want to consider paying for a device on the higher end of the price spectrum. That will get you better overall performance, higher-quality cameras and a phone that will last for many years. If you don’t use your phone for everything, you may be able to compromise on performance and extra perks and spend less on a still-capable handset.

How much is a smartphone?

Smartphones range in price from $300 to over $1,500. The best budget phones available now will usually compromise on overall performance, design, camera prowess and extra features to keep costs down. On the flip side, the most expensive phones will have powerful processors, triple-camera arrays and even flip or fold designs. Most people will find a phone that fits their needs somewhere in the middle of that wide price range — we’ve found that most of the best smartphones available right now cost between $500 and $1,000.

What can you do on a smartphone?

Smartphones are essentially small, portable computers that let you do things like check email, browse social media, follow map directions, make contactless payments and more. This is all on top of the basics like making phone calls and texting, which we’ve come to expect in all modern cell phones. Smartphones have also mostly replaced compact cameras thanks to their high-quality, built-in shooters, and the fact that most smartphones today as just as portable, if not more so, as compact cameras.

How long do smartphones last?

Smartphones can last years and people are holding on to their phones longer now than ever before. Software updates and battery life are two of the biggest factors that can affect phone longevity. Apple promises five years worth of software updates for its latest iPhones, and Google promises the same for its Pixel phones. Samsung phones will get four years worth of Android updates from the time they launch. As for charging speeds and battery life, your phone can deteriorate over time as you use and recharge your phone on a regular basis.

This article originally appeared on Engadget at https://www.engadget.com/best-smartphones-140004900.html?src=rss

© Engadget

The best smartphones

The best smartphones to buy in 2024

You might have an idea of which smartphone you want to buy next. But there are more options than ever before that are solid — plenty of companies are making stellar handsets nowadays, at similar prices, all with comparable feature sets. That said, the choice isn’t always cut-and-dry. If you know you want an iPhone, your decision-making process is a bit easier. If you’re an Android person, you have even more options to choose from and more questions to answer before you spend any money. At Engadget, we review phones regularly and have tested dozens over the years; so far for 2024, our top picks remain the same as they were last year, with Apple's iPhone 15 Pro and Google's Pixel 8 handsets sitting at the top of the list. Whether you’ve had your eye on them, one of Samsung's new Galaxy S24 phones or another device, we’re here to help you decide which is the best phone to buy this year.

Editor’s note (5/8/24): Google has announced the Pixel 8a, its latest midrange smartphone. The 6.1-inch handset starts at $499 and, as expected, takes many of its cues from last year’s flagship Pixel 8 series. We’ll have a full review in the coming days and will update this guide accordingly. For now, you can check out our hands-on preview for more details on what to expect. Google says it’ll continue to sell the Pixel 7a, our current midrange pick, at a reduced price, so it may continue to be worthwhile. Most should hold off until we put the new Pixel through its paces, though.

Android or iOS?

When you're searching for the best smartphone, it becomes clear that each OS has its pros and cons. Apple’s tight-knit ecosystem makes it super easy to share data between iPhones, iPads and Macs or seamlessly hand-off phone calls or music from one device to another. At the same time, you’re effectively locked in, as services like Apple Messages aren’t available on other platforms.

As for Android, there’s a much wider range of handsets from companies like Google, Samsung, Sony and more. However, Android phones don’t enjoy that same length of software support and often have lower trade-in values. In short, there’s no wrong answer. However, you will want to consider how your phone will fit in with the rest of your devices. So unless you’re really fed up with one OS and willing to learn another, it probably doesn’t make a lot of sense to switch from an iPhone to an Android phone (or vice versa) – especially if everyone else in your household is using the same platform.

Cameras

Since your cell phone often pulls double duty as your primary camera, figuring out what kind of photo tools you want is key. Nowadays, practically every mobile phone can take a great picture in bright light. But if you want a long optical zoom, you’ll probably have to upgrade to a more expensive device.

Close up of the Pixel 6 Pro's camera bump.
Cherlynn Low / Engadget

Mid-range phones often only have two rear cameras (a primary wide-angle lens and a secondary ultra-wide camera) and can sometimes struggle in low-light situations. Each phone maker also has various features that might be a better fit for your style, with Apple offering four different color presets on the latest iPhones, while Google’s Pixel 8 comes with neat tools like dedicated long exposure and Action Pan modes.

Will you get mmWave 5G or Wi-Fi 7?

The good news is that in 2024, most phones have at least Wi-Fi 6 or Wi-Fi 6e and support for some kind of 5G connectivity. However, if you want the fastest wireless speeds possible, it’s going to cost you a little extra. For example, on certain networks, mmWave 5G offers up to gigabit download speeds, less latency and better bandwidth. But mmWave 5G also requires more sophisticated (and pricier) modems, which means support for it is often missing on less expensive devices, even those like the unlocked version of the Pixel 8.

On the bright side, mmWave 5G isn’t as widely available as other versions of 5G, so depending on where you live and what network you’re on, you may not be missing out on much right now if you buy a phone that doesn’t support it. It’s a similar situation for Wi-Fi 7, which is available on some high-end handsets like the Galaxy S24, but harder to find on cheaper devices. Wi-Fi 7 also requires you to have a compatible router, so unless you know you need it or have a specific use case in mind, the lack of support for mmWave 5G or Wi-Fi 7 shouldn’t be a dealbreaker when looking for a new phone.

Other features to consider

Because not everyone agrees on what makes the best phone, you should think about any other specs that might be extra important for you. Mobile gamers will almost certainly appreciate the 120Hz refresh rates you get on phones like the Samsung Galaxy S23 or the Apple iPhone 15 Pro. Alternatively, if long battery life is important, you’ll probably want to go with a larger iPhone or an Android phone with a battery that’s between 4,000 and 5,000 mAh in size. Meanwhile, if you find yourself juggling a lot of devices, it can be really nice to have a phone that supports reverse wireless charging, which on Samsung phones even lets you recharge the company’s Galaxy Watches.

Other smartphones we've tested

Samsung Galaxy S24 Ultra

For its latest super-premium phone, Samsung gave the S24 Ultra a more durable titanium frame, faster performance thanks to a Snapdragon 8 Gen 3 chip and a much longer battery life. The company also tweaked its longest telephoto lens with a 5x optical zoom so it's more usable in a wider range of situations. But the biggest upgrade is a new full suite of AI tools, which includes the ability to proofread texts, edit images and transcribe recordings. And when you tack on the best display available on a phone today and a built-in stylus, you have a very compelling flagship handset. Unfortunately, starting at $1,300, the S24 Ultra is a bit too expensive to recommend to anyone without deep pockets.

OnePlus 12

While the OnePlus 12 wasn’t able to unseat the latest Pixel, it’s worth mentioning because it offers powerful specs for the money. It features a speedy Snapdragon 8 Gen 3 chip, a big and bright 6.8-inch, 120Hz OLED screen and the best battery life we’ve seen on any phone to date. OnePlus also brought back support for wireless charging for the first time in several generations, along with a good (but not great) IP65 rating for dust and water resistance. And even though its huge camera module looks a bit ungainly, its photos are surprisingly sharp. But the best thing is that, with a starting price of $800, the OnePlus 12 costs $200 less than a Pixel 8 Pro or a similarly specced S24+.

FAQs

How do I know which smartphone is the best for me?

While choosing the best smartphone can be challenging, it mostly comes down to how you plan on using the device. All of the best phones available now get the basics right — you’ll be able to make calls, text and access the internet without many hiccups. If your smartphone is your most used gadget, you may want to consider paying for a device on the higher end of the price spectrum. That will get you better overall performance, higher-quality cameras and a phone that will last for many years. If you don’t use your phone for everything, you may be able to compromise on performance and extra perks and spend less on a still-capable handset.

How much is a smartphone?

Smartphones range in price from $300 to over $1,500. The best budget phones available now will usually compromise on overall performance, design, camera prowess and extra features to keep costs down. On the flip side, the most expensive phones will have powerful processors, triple-camera arrays and even flip or fold designs. Most people will find a phone that fits their needs somewhere in the middle of that wide price range — we’ve found that most of the best smartphones available right now cost between $500 and $1,000.

What can you do on a smartphone?

Smartphones are essentially small, portable computers that let you do things like check email, browse social media, follow map directions, make contactless payments and more. This is all on top of the basics like making phone calls and texting, which we’ve come to expect in all modern cell phones. Smartphones have also mostly replaced compact cameras thanks to their high-quality, built-in shooters, and the fact that most smartphones today as just as portable, if not more so, as compact cameras.

How long do smartphones last?

Smartphones can last years and people are holding on to their phones longer now than ever before. Software updates and battery life are two of the biggest factors that can affect phone longevity. Apple promises five years worth of software updates for its latest iPhones, and Google promises the same for its Pixel phones. Samsung phones will get four years worth of Android updates from the time they launch. As for charging speeds and battery life, your phone can deteriorate over time as you use and recharge your phone on a regular basis.

This article originally appeared on Engadget at https://www.engadget.com/best-smartphones-140004900.html?src=rss

© Engadget

The best smartphones

The best smartphones to buy in 2024

You might have an idea of which smartphone you want to buy next. But there are more options than ever before that are solid — plenty of companies are making stellar handsets nowadays, at similar prices, all with comparable feature sets. That said, the choice isn’t always cut-and-dry. If you know you want an iPhone, your decision-making process is a bit easier. If you’re an Android person, you have even more options to choose from and more questions to answer before you spend any money. At Engadget, we review phones regularly and have tested dozens over the years; so far for 2024, our top picks remain the same as they were last year, with Apple's iPhone 15 Pro and Google's Pixel 8 handsets sitting at the top of the list. Whether you’ve had your eye on them, one of Samsung's new Galaxy S24 phones or another device, we’re here to help you decide which is the best phone to buy this year.

Editor’s note (5/8/24): Google has announced the Pixel 8a, its latest midrange smartphone. The 6.1-inch handset starts at $499 and, as expected, takes many of its cues from last year’s flagship Pixel 8 series. We’ll have a full review in the coming days and will update this guide accordingly. For now, you can check out our hands-on preview for more details on what to expect. Google says it’ll continue to sell the Pixel 7a, our current midrange pick, at a reduced price, so it may continue to be worthwhile. Most should hold off until we put the new Pixel through its paces, though.

Android or iOS?

When you're searching for the best smartphone, it becomes clear that each OS has its pros and cons. Apple’s tight-knit ecosystem makes it super easy to share data between iPhones, iPads and Macs or seamlessly hand-off phone calls or music from one device to another. At the same time, you’re effectively locked in, as services like Apple Messages aren’t available on other platforms.

As for Android, there’s a much wider range of handsets from companies like Google, Samsung, Sony and more. However, Android phones don’t enjoy that same length of software support and often have lower trade-in values. In short, there’s no wrong answer. However, you will want to consider how your phone will fit in with the rest of your devices. So unless you’re really fed up with one OS and willing to learn another, it probably doesn’t make a lot of sense to switch from an iPhone to an Android phone (or vice versa) – especially if everyone else in your household is using the same platform.

Cameras

Since your cell phone often pulls double duty as your primary camera, figuring out what kind of photo tools you want is key. Nowadays, practically every mobile phone can take a great picture in bright light. But if you want a long optical zoom, you’ll probably have to upgrade to a more expensive device.

Close up of the Pixel 6 Pro's camera bump.
Cherlynn Low / Engadget

Mid-range phones often only have two rear cameras (a primary wide-angle lens and a secondary ultra-wide camera) and can sometimes struggle in low-light situations. Each phone maker also has various features that might be a better fit for your style, with Apple offering four different color presets on the latest iPhones, while Google’s Pixel 8 comes with neat tools like dedicated long exposure and Action Pan modes.

Will you get mmWave 5G or Wi-Fi 7?

The good news is that in 2024, most phones have at least Wi-Fi 6 or Wi-Fi 6e and support for some kind of 5G connectivity. However, if you want the fastest wireless speeds possible, it’s going to cost you a little extra. For example, on certain networks, mmWave 5G offers up to gigabit download speeds, less latency and better bandwidth. But mmWave 5G also requires more sophisticated (and pricier) modems, which means support for it is often missing on less expensive devices, even those like the unlocked version of the Pixel 8.

On the bright side, mmWave 5G isn’t as widely available as other versions of 5G, so depending on where you live and what network you’re on, you may not be missing out on much right now if you buy a phone that doesn’t support it. It’s a similar situation for Wi-Fi 7, which is available on some high-end handsets like the Galaxy S24, but harder to find on cheaper devices. Wi-Fi 7 also requires you to have a compatible router, so unless you know you need it or have a specific use case in mind, the lack of support for mmWave 5G or Wi-Fi 7 shouldn’t be a dealbreaker when looking for a new phone.

Other features to consider

Because not everyone agrees on what makes the best phone, you should think about any other specs that might be extra important for you. Mobile gamers will almost certainly appreciate the 120Hz refresh rates you get on phones like the Samsung Galaxy S23 or the Apple iPhone 15 Pro. Alternatively, if long battery life is important, you’ll probably want to go with a larger iPhone or an Android phone with a battery that’s between 4,000 and 5,000 mAh in size. Meanwhile, if you find yourself juggling a lot of devices, it can be really nice to have a phone that supports reverse wireless charging, which on Samsung phones even lets you recharge the company’s Galaxy Watches.

Other smartphones we've tested

Samsung Galaxy S24 Ultra

For its latest super-premium phone, Samsung gave the S24 Ultra a more durable titanium frame, faster performance thanks to a Snapdragon 8 Gen 3 chip and a much longer battery life. The company also tweaked its longest telephoto lens with a 5x optical zoom so it's more usable in a wider range of situations. But the biggest upgrade is a new full suite of AI tools, which includes the ability to proofread texts, edit images and transcribe recordings. And when you tack on the best display available on a phone today and a built-in stylus, you have a very compelling flagship handset. Unfortunately, starting at $1,300, the S24 Ultra is a bit too expensive to recommend to anyone without deep pockets.

OnePlus 12

While the OnePlus 12 wasn’t able to unseat the latest Pixel, it’s worth mentioning because it offers powerful specs for the money. It features a speedy Snapdragon 8 Gen 3 chip, a big and bright 6.8-inch, 120Hz OLED screen and the best battery life we’ve seen on any phone to date. OnePlus also brought back support for wireless charging for the first time in several generations, along with a good (but not great) IP65 rating for dust and water resistance. And even though its huge camera module looks a bit ungainly, its photos are surprisingly sharp. But the best thing is that, with a starting price of $800, the OnePlus 12 costs $200 less than a Pixel 8 Pro or a similarly specced S24+.

FAQs

How do I know which smartphone is the best for me?

While choosing the best smartphone can be challenging, it mostly comes down to how you plan on using the device. All of the best phones available now get the basics right — you’ll be able to make calls, text and access the internet without many hiccups. If your smartphone is your most used gadget, you may want to consider paying for a device on the higher end of the price spectrum. That will get you better overall performance, higher-quality cameras and a phone that will last for many years. If you don’t use your phone for everything, you may be able to compromise on performance and extra perks and spend less on a still-capable handset.

How much is a smartphone?

Smartphones range in price from $300 to over $1,500. The best budget phones available now will usually compromise on overall performance, design, camera prowess and extra features to keep costs down. On the flip side, the most expensive phones will have powerful processors, triple-camera arrays and even flip or fold designs. Most people will find a phone that fits their needs somewhere in the middle of that wide price range — we’ve found that most of the best smartphones available right now cost between $500 and $1,000.

What can you do on a smartphone?

Smartphones are essentially small, portable computers that let you do things like check email, browse social media, follow map directions, make contactless payments and more. This is all on top of the basics like making phone calls and texting, which we’ve come to expect in all modern cell phones. Smartphones have also mostly replaced compact cameras thanks to their high-quality, built-in shooters, and the fact that most smartphones today as just as portable, if not more so, as compact cameras.

How long do smartphones last?

Smartphones can last years and people are holding on to their phones longer now than ever before. Software updates and battery life are two of the biggest factors that can affect phone longevity. Apple promises five years worth of software updates for its latest iPhones, and Google promises the same for its Pixel phones. Samsung phones will get four years worth of Android updates from the time they launch. As for charging speeds and battery life, your phone can deteriorate over time as you use and recharge your phone on a regular basis.

This article originally appeared on Engadget at https://www.engadget.com/best-smartphones-140004900.html?src=rss

© Engadget

The best smartphones

T-Mobile finally owns Ryan Reynolds-backed Mint Mobile

Over a year after announcing it would acquire Mint Mobile for up to $1.35 billion, T-Mobile has closed the deal. With the Un-Carrier's purchase of parent Ka'ena Corporation, it will not only get Mint, but internationally focused prepaid operator Ultra Mobile and wholesale wireless provider Plum. T-Mobile also promised to keep Mint Mobile's $15 per month/5GB offering that's among the least costly in the US.

Mint Mobile is backed by Ryan Reynolds, who is believed to own 20 to 25 percent of the company. The purchase was announced back in March 2023, but the FCC only approved the deal last week. Mint will continue to be operated as a separate brand with Reynolds as pitchman and founders David Glickman and Rizwan Kassim joining T-Mobile to guide the brands. 

Mint Mobile's $15 plan has a few loopholes, namely you have to pay for three months at the start to get that rate, then pay for an entire year to keep it ($180 in total). As a perk, T-Mobile is offering "unlimited" (40GB with throttling, really) data for the first months. Customers will also get unlimited talk and text in Canada, along with 3GB of roaming data. 

Mint's rivals include T-Mobile itself, which has a very similar plan but a hard cap at 5GB, along with AT&T, which offers 15GB for $25 including 10GB of hotspot data. A one-year contract and up-front payment is required for the latter. 

This article originally appeared on Engadget at https://www.engadget.com/t-mobile-finally-owns-ryan-reynolds-backed-mint-mobile-082450117.html?src=rss

© T-Mobile

T-Mobile finally owns Ryan Reynolds-backed Mint Mobile

Google Pixel Phones Set to Introduce Satellite SOS Feature

Od: Abdullah
2. Březen 2024 v 10:38
Google Pixel 8

News of Android 14 supporting satellite communication sparked anticipation for an emergency SOS feature on Google Pixel phones. Now, evidence suggests this feature might be ...

The post Google Pixel Phones Set to Introduce Satellite SOS Feature appeared first on Gizchina.com.

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