Technologies

How Is T-Mobile’s Starlink-Based Satellite Service Different From the Rest? I Tried It First-Hand

The $10-a-month T-Satellite service keeps you connected in areas without cellular coverage — and you don’t need to be a T-Mobile subscriber or buy a new phone to use it.

T-Mobile’s new T-Satellite service commercially launched this week. It uses the Starlink satellite network to let you send and receive text messages from space. For $10 a month (or included in the cost of the company’s Experience Beyond plan), the service can be a communications lifeline when you’re out of cellular coverage.

But that’s the thing: To test it out, I had to find a cellular dead zone. T-Mobile estimates there are 500,000 square miles in the US with no cell coverage, so I left my home in Seattle to find one. After three hours of driving to the wooded North Cascades, I got my chance to see if satellite texting is as easy as everyday cellular texting, and how T-Satellite differs from other satellite services.

How T-Satellite differs from other satellite services

Satellite texting is now a big deal: the wireless providers and phone-makers including Apple are betting satellite connectivity is the answer for travelers and people who live in remote areas (and even those impacted by emergencies such as the massive flooding in Texas).

It also isn’t new. Apple started offering SOS communication backed by Globalstar on the iPhone 14. And later, that allowed emergency texting when you’re outside coverage areas — a literal lifesaver for people injured, lost or stranded in remote areas. The feature also allowed you to share you location via satellite in the Find My app. Apple then expanded the service to include any texting using the Messages app, as well as calling for roadside assistance. CNET’s David Lumb used Messages via satellite on his iPhone 15 Pro to text friends and share his thoughts when he summited Mount Haleakalā’s peak in Hawaii.

Google has a similar feature in its Pixel 9 phones, except the Pixel 9A, which works with satellite provider Skylo. Samsung Galaxy phones, like the recently released Galaxy Z Fold 7 and Z Flip 7, can use Verizon for satellite texting and to contact emergency services through Skylo, too.

However, that communication involves a few steps to activate the feature. You need to be outdoors with a clear view of the sky — no trees or buildings — and point your phone at a passing satellite, keeping it steady to maintain the connection.

With T-Satellite, the experience is quite different. Texting is almost indistinguishable from when you’re within cellular coverage. On a Samsung Galaxy S25 Ultra with a T-Mobile plan, opening the Messages app showed the phone already connected to satellite, with a banner reading «You’re messaging by satellite.» A small satellite icon appears in the menu bar with radiating curves to indicate the status of the connection.

This is due in part to the fact that there are now more than 650 Starlink satellites overhead providing wider coverage, but also because they use a frequency band compatible with most phones sold in the last four years.You don’t need a specific phone model that has satellite messaging hardware, such as the Motorola Razr Ultra.

The experience of setting up T-Satellite on my iPhone 16 Pro was generally the same. One unique thing about T-Satellite is that T-Mobile is offering the service to anyone, even if they use another carrier for cellular service. In my case, I set up the T-Satellite beta using the second eSIM slot on my phone, and turned off the primary service (AT&T) in order to test just T-Mobile’s feature. A solid black satellite icon appears in the menu bar.

I should note that I performed this testing a couple days before T-Satellite went live, so it was technically during the T-Satellite beta period, and using a beta version of the Messages app on Android.

Plus, I didn’t attempt to make an emergency call, either, which on the T-Satellite service would mean dialing 911 in the phone app, versus initiating an SOS text communication using Apple’s service.

Texting, but sometimes slower

Mostly, texting via satellite is just like texting via cellular. The data pipe between the phone and a satellite flying overhead at 17,000 miles per hour is small, so occasionally texts would take several seconds to go through. But sometimes a conversation would happen without any extended lag. By comparison, when CNET’s Patrick Holland tested Apple’s Messages via satellite feature, he noted that «most sends were nearly instantaneous, others took 15 to 20 seconds with one taking over a minute.»

One feature going live today for Android is the ability to send images, videos and audio files using Multimedia Messaging Service over the satellite network. On the Galaxy S25 Ultra, I snapped a photo of the lake and sent it using Messages as I normally would. The only difference over satellite is that it took around two and a half minutes to send.

However, MMS is currently only supported on Android; iOS support is coming later. Also arriving in the future — October, specifically — is the ability for apps to send and receive data over the satellite connection. T-Mobile has cited AllTrails as an example of apps that’ll be compatible with the service.

This would be a great use of data for other mapping tools. Although I was never lost on this trip —I pulled into a well-marked scenic overlook to test with a stunning view — I also made a point of downloading an offline map of the area using Apple Maps while I was still within cellular range.

Lingering questions and challenges

Not every message went through, and after my limited testing, there are a few areas where more clarity would help.

For example, on Android, it wasn’t always obvious when I’d lost satellite connection. In theory, with many Starlink satellites overhead, you shouldn’t have to worry about pointing at a specific patch of sky to maintain a connection. But at one point after sending a message, some text below it said the app was waiting to connect. Only then did I notice the tiny satellite icon was showing thin gray bars instead of thin black bars.

Compare that to Apple’s implementation, which uses Dynamic Island to show an impossible-to-miss green status button to indicate a solid connection to a satellite. Or Google’s Satellite SOS service, with its full-screen visual prompts that help you stay connected to a satellite or connect to a new one if needed.

I also ran into some confusion with my iPhone 16 Pro running T-Satellite as a secondary eSIM. When attempting to text a friend who came along with me and was using Apple’s method on his iPhone, I got a message that he was connected via satellite and was given the option to tap Send via Satellite. What I didn’t realize at the time was that the connection dropped as I was typing the text. On further research, I discovered that an active third-party satellite connection shows «SAT» in the menu bar. When SAT is replaced by a black satellite icon, it means T-Satellite is no longer connected, but that Apple’s satellite option is available; I thought it meant that I was still connected.

Look up, and ahead

Will satellite services cover the remaining dead zones and allow easy communication even in remote areas? Based on my experience, the potential is definitely there. It’s been less than two years since Apple first launched Emergency SOS via satellite on the iPhone and it’s impressive how satellite connectivity has expanded so quickly with the ability to support texting. I appreciate that the T-Satellite implementation is similar to the way millions of people communicate every day via text. Removing friction is key to adopting technologies like this.

As companies build up the capacity and performance of satellite services, it’s easy to see a near future where you don’t have to think about how you’re getting data, just as we currently don’t ever think about which cellular tower is relaying our data.

As someone who lives in cellular-saturated Seattle, I probably won’t need to rely on satellite data. But the North Cascades is where I’ve gone camping for years, so I can see it being occasionally useful, especially if there’s ever an emergency situation.

As I was juggling my phones and pestering my friends and family with texts, a couple approached to ask what I was doing. They were visiting the area from a small town in northern Idaho near the Canadian border, where cellular coverage is a rarity. After talking for a few minutes, I realized that being able to connect wirelessly via satellite could be a real boon for them, especially in emergencies, but also everyday annoyances when other forms of communication aren’t available, like during power outages.

Technologies

Kohler Wants to Put a Tiny Camera in Your Toilet and Analyze the Contents

The company’s new Dekoda toilet accessory is like a little bathroom detective.

Some smart litter boxes can monitor our pets’ habits and health, so having a camera in our human toilet bowls seems inevitable. That’s just what kitchen and bathroom fixture company Kohler has done for its new health and wellness brand, Kohler Health.

The $599 Dekoda clamps over the rim like a toilet bowl cleaner, pointing an optical sensor at your excretions and secretions. It then analyzes the images to detect any blood and reviews your gut health and hydration status. Depending on the plan you choose, the subscription fee is between $70 and $156 per year.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

At toilet time, you sign in via a fingerprint sensor so that the device knows who’s using the facilities. (Please wash your hands before signing out or tracking your progress.) Then, check in with the app for the day’s analysis and trends over time.

Wait until you’re off the pot, though, before you start doomscrolling your health. The device has a removable, rechargeable battery and uses a USB connection.

Kohler says it secures your data via the aforementioned fingerprint scanner and end-to-end encryption, and notes that the camera uses «discreet optics,» looking only at the results, not your body parts.

«Dekoda’s sensors see down into your toilet and nowhere else,» the company says.

Kohler warns that the technology doesn’t work very well with dark toilet colors, which makes sense. I’m sure there could be an upsell model with a light on it. Maybe the company could add an olfactory sensor, since smell reveals a lot about your gut health too. It could track «session» length or buildup under the rim to alert whoever has responsibility to clean it.

Kohler must have been straining to find appropriate lifestyle photos to include with the publicity materials. Many of the images are hilarious, featuring fit-looking men and women drinking water and staring off into space contemplatively — probably thinking about gas.

Technologies

Who’s Up to Fight Mega-Corporations in the Outer Worlds 2 on Xbox Game Pass?

Save the universe by fighting one CEO at a time in The Outer Worlds 2, plus play other great games coming to Xbox Game Pass in October.

Space is the final frontier, and it’s packed with some devious mega-corporations who are out to make a buck in The Outer Worlds 2. Xbox Game Pass subscribers can fight them in the highly anticipated sequel starting on Oct. 29.

Xbox Game Pass offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One, Amazon Fire TV, smart TV and PC or mobile device, with prices starting at $10 a month. While all Game Pass tiers offer you a library of games, Game Pass Ultimate ($30 a month) gives you access to the most games, as well as Day 1 games, like Hollow Knight: Silksong, added monthly.

Here are all the games subscribers can play on Game Pass soon. You can also check out other games the company added to the service in October, including Ninja Gaiden 4.

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PowerWash Simulator 2

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 23.

If you’ve ever spent hours watching people on YouTube clean dirty rugs, cars and other grimy objects, you should check out PowerWash Simulator 2. As the name suggests, this sequel is all about blasting away dirt and filth from pools, homes and other objects around town. You have a furry kitty companion, and yes, you can pet them when you’ve finished cleaning.

Bounty Star

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 23.

The American Southwest has devolved into a lawless, post-apocalyptic desert called the Red Expanse in this game. You’re out to clean the place up in this game by taking down major bounties issued by the government, and the best way to do that is by piloting and customizing a giant mech, of course. When you want to nurse your wounds, head back to your run-down garage to rest, grow and cook food and raise animals. It’s like a cozy Armored Core game.

Super Fantasy Kingdom (game preview)

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 24.

After returning from a hunting trip, you find your 8-bit kingdom wrecked in this game. You must rebuild your domain in this roguelite, city builder. But as night falls, hordes of monsters emerge to tear everything back down. Build, mine, cook and grow your home, and prepare to defend it from all dangers.

Halls of Torment

Game Pass Ultimate, Game Pass Premium and PC Game Pass subscribers can start playing on Oct. 28.

Get ready to descend into the deadly Halls of Torment in this retro, horde survival game. You can choose between 11 playable characters, each with their own playstyle, and equip various items and abilities to survive waves of enemies. This game is like Vampire Survivors, so if you like that game give this one a shot.

The Outer Worlds 2

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 29.

Clear your calendar for this sequel to the award-winning sci-fi adventure, The Outer Worlds. This time, you’re an Earth Directorate agent investigating the cause of devastating rifts that could destroy humanity. You have a new ship, new crew, new enemies and mega-corporation goons standing between you and the answers.

1000xResist

Game Pass Ultimate, Game Pass Premium and PC Game Pass subscribers can start playing on Nov. 4.

One thousand years in the future, humanity is hanging on by a thread after a disease spread by alien occupation forces people to live underground in this sci-fi adventure game. You play as Watcher, and you fulfill your duties well, until one day you make a shocking discovery. This game won a Peabody Award in 2024, and it was nominated for the Nebula Award for Best Game Writing that same year, so get ready for a story like no other.

Football Manager 26

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 29.

Get ready for a more immersive matchday experience in the latest installment of the Football Manager franchise. You can build a star-studded squad with new transfer tools, and this entry features official Premier League licenses and women’s football for the first time in the series’ history.

Game Pass subscribers can play the standard or Console edition of this game.

Games leaving Game Pass on Oct. 31

While Microsoft is adding those games to Game Pass, it’s also removing three others from the service on Oct. 31. So you still have some time to finish your campaign and any side quests before you have to buy these games separately.

Jusant
Metal Slug Tactics
Return to Monkey Island

For more on Xbox, discover other games available on Game Pass now and check out our hands-on review of the gaming service. You can also learn about recent changes to the Game Pass service.

Technologies

Does Charging Your Phone Overnight Damage the Battery? We Asked the Experts

Modern smartphones are protected against overcharging, but heat and use habits can still degrade your battery over time.

Plugging your phone in before you head to bed might seem like second nature. That way by the time your alarms go off in the morning, your phone has a full charge and is ready to help you conquer your day. However, over time, your battery will start to degrade. So is keeping your phone plugged in overnight doing damage to the battery?

The short answer is no. Keeping your phone plugged in all the time won’t ruin your battery. Modern smartphones are built with smart charging systems that cut off or taper power once they’re full, preventing the kind of «overcharging damage» that was common in older devices. So if you’re leaving your iPhone or Android on the charger overnight, you can relax.

That said, «won’t ruin your battery» doesn’t mean it has no effect. Batteries naturally degrade with age and use, and how you charge plays a role in how fast that happens. Keeping a phone perpetually at 100% can add extra stress on the battery, especially when paired with heat, which is the real enemy of longevity.

Understanding when this matters (and when it doesn’t) can help you make small changes to extend your phone’s lifespan.

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The science behind battery wear

Battery health isn’t just about how many times you charge your phone. It’s about how it manages voltage, temperature and maintenance. Lithium-ion batteries age fastest when they’re exposed to extreme levels: 0% and 100%.

Keeping them near full charge for long stretches puts additional voltage stress on the cathode and electrolyte. That’s why many devices use «trickle charging» or temporarily pause at 100%, topping up only when needed.

Still, the biggest threat isn’t overcharging — it’s heat. When your phone is plugged in and running demanding apps, it produces heat that accelerates chemical wear inside the battery. If you’re gaming, streaming or charging on a hot day, that extra warmth does far more harm than leaving the cable plugged in overnight.

Apple’s take

Apple’s battery guide describes lithium-ion batteries as «consumable components» that naturally lose capacity over time. To slow that decline, iPhones use Optimized Battery Charging, which learns your daily routine and pauses charging at about 80% until just before you typically unplug, reducing time spent at high voltage.

Apple also advises keeping devices between 0 to 35 degrees Celsius (32 to 95 degrees Fahrenheit) and removing certain cases while charging to improve heat dissipation. You can read more on Apple’s official battery support page.

What Samsung (and other Android makers) do

Samsung offers a similar feature called Battery Protect, found in One UI’s battery and device care settings. When enabled, it caps charging at 85%, which helps reduce stress during long charging sessions.

Other Android makers like Google, OnePlus and Xiaomi include comparable options — often called Adaptive Charging, Optimized Charging or Battery Care — that dynamically slow power delivery or limit charge based on your habits. These systems make it safe to leave your phone plugged in for extended periods without fear of overcharging.

When constant charging can hurt

Even with these safeguards, some conditions can accelerate battery wear. As mentioned before, the most common culprit is high temperature. Even for a short period of time, leaving your phone charging in direct sunlight, in a car or under a pillow can push temperatures into unsafe zones.

Heavy use while charging, like gaming or 4K video editing, can also cause temperature spikes that degrade the battery faster. And cheap, uncertified cables or adapters may deliver unstable current that stresses cells. If your battery is already several years old, it’s naturally more sensitive to this kind of strain.

How to charge smarter

You don’t need to overhaul your habits but a few tweaks can help your battery age gracefully.

Start by turning on your phone’s built-in optimization tools: Optimized Battery Charging on iPhones, Battery Protect on Samsung devices and Adaptive Charging on Google Pixels. These systems learn your routine and adjust charging speed so your phone isn’t sitting at 100% all night.

Keep your phone cool while charging. According to Apple, phone batteries perform best between 62 and 72 degrees Fahrenheit (16 to 22 degrees Celsius). If your phone feels hot, remove its case or move it to a better-ventilated or shaded spot. Avoid tossing it under a pillow or too close to other electronics, like your laptop, and skip wireless chargers that trap heat overnight.

Use quality chargers and cables from your phone’s manufacturer or trusted brands. Those cheap «fast-charge» kits you find online often deliver inconsistent current, which can cause long-term issues.

Finally, don’t obsess over topping off. It’s perfectly fine to plug in your phone during the day for short bursts. Lithium-ion batteries actually prefer frequent, shallow charges rather than deep, full cycles. You don’t need to keep it between 20% and 80% all the time, but just avoid extremes when possible.

The bottom line

Keeping your phone plugged in overnight or on your desk all day won’t destroy its battery. That’s a leftover myth from a different era of tech. Modern phones are smart enough to protect themselves, and features like Optimized Battery Charging or Battery Protect do most of the heavy lifting for you.

Still, no battery lasts forever. The best way to slow the inevitable is to manage heat, use quality chargers and let your phone’s software do its job. Think of it less as «babying» your battery and more as charging with intention. A few mindful habits today can keep your phone running strong for years.