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Apple Watch Ultra 2 Review: A Brighter Screen Makes My Favorite Watch Better

A searingly bright screen and faster responses are nice but not necessary upgrades.

The Apple Watch Ultra 2 doesn’t try to reinvent the wheel, simply because it doesn’t have to. After wearing the Apple Watch Ultra 2 for a week on hikes, bike rides and some casual spelunking (seriously!), it has less of a wow factor compared with the first Ultra. And that’s only because it feels so familiar. It’s available now alongside the Apple Watch Series 9, which shares the same upgraded chip.

Like Apple’s first Ultra, the Apple Watch Ultra 2 costs $799 (£799, AU$1,399) and is sold as an outdoors watch with a rugged design and a range of sports features. The Ultra 2 still has a customizable action button, fall and car crash detection, ECG, temperature sensor, dual-frequency GPS, and built-in LTE. It shares the same heart rate sensor, which is incredibly accurate, and has the same collection of sports features to suit divers, runners and outdoor enthusiasts. It also looks identical to the first Ultra, even though the 49mm case is now made from 95% recycled titanium.

So what is different? The screen, chip and new Double Tap feature are the key highlights. For hikers and cyclists in particular, the Apple Watch Ultra 2 has a lot to offer, but that’s more a reflection on WatchOS 10 than the hardware itself. You’ll be able to get most of the same great experience on earlier, compatible Apple Watches too, including the original Ultra, which I named the most exciting watch in years when it came out in 2022. 

That blisteringly bright Apple Watch Ultra 2 screen

It’s impossible to spot the difference between the original Ultra and the Ultra 2 — that is, until you see the screens. Apple has cranked the brightness to 3,000 nits on the Ultra 2, earning it the title of the brightest screen on any Apple product. The iPhone 15 Pro by comparison reaches a peak brightness of 2,000 nits, the same as the original Apple Watch Ultra.

I took the Ultra 2 on a hike in the Marin Headlands on a bright overcast day, then to Ocean Beach in San Francisco when the sun was in full force the following day. I didn’t have any issues seeing the screen in either situation, whether it was a quick time check, reading a message or glancing at my workout stats. To be fair, I had no issue with the screen brightness on the first Ultra when it comes to readability and outdoors use.

But it’s the flashlight that gets a bigger boost. I took the Apple Watch Ultra 2 into a cave and it lit up the rockface much better than the first Ultra when I compared the two. 

Apple Watch Ultra 2 screen

You can even force the Ultra 2’s flashlight to hit maximum brightness by turning the digital crown, which is something you can’t do on the first Ultra. Side note: Don’t do what I did and crank the brightness on the flashlight in a dark room, screen aimed at your eyes. My retinas are still cursing me.

From a safety point of view, the brighter flashlight is great if you’re walking, running or riding at night. But you can’t see workout stats, messages or make a call without losing the light. Maybe in the future, the edge of the screen could stay at maximum brightness so you could still interact with the watch and not lose the light. I’m still not totally sure what the best use case is for this brighter new screen if it’s not for safety purposes, given the screen on the first Ultra was bright enough for just about any environment.

On the flip side, the Apple Watch Ultra 2’s screen also gets dimmer than the first watch, going down to just one nit when you have the watch in sleep mode. It can also get that dim if the screen isn’t active and you’re in a really dark room.

Apple Watch Ultra 2 gym

Apple Watch Ultra 2 gets Double Tap

The Ultra 2 shares the same S9 chip as the Series 9, which allows for on-device Siri, overall performance improvements and the double tap gesture.

Just as the name suggests, you double tap your thumb and index finger to act as a screen press when you can’t reach the watch with your other hand. There are over 65 different actions you can make in Apple’s own apps, like skipping a track in the Music app, taking a photo on the iPhone with the Camera remote app or starting a timer. Third-party apps can also work with Double Tap.

Double Tap on the Series 9

While I wasn’t able to use Double tap on my Ultra 2 review unit, I was able to try a preview of it on the Series 9, and the implementation will be the same. So far, the most helpful Double Tap action has been responding to a message when I can’t reach the screen, like when I’m walking my dog. I’ll feel the buzz of an incoming message, raise my wrist to read it, then double tap to reply and voice-to-text dictation automatically pops up.

Double Tap builds on the foundation set by AssistiveTouch, a feature designed to help people with physical impairments control the Apple Watch without touching the screen. Double Tap is a separate function exclusive to watches that have the S9 chip, and it’s on by default, while AssistiveTouch needs to be turned on from the Accessibility menu. 

Double Tap has been accurate at registering my gestures, but I wish it did more for the workout app specifically. At the moment, double tapping doesn’t do anything. I’d love to see it sub in for the action button so if you can’t press it, you could just double tap instead to perform the same action, like marking a segment.

Apple Watch Ultra 2 gym

WatchOS 10 adds so much to Apple Watch Ultra 2

The Apple Watch Ultra 2 brings several important updates for hikers, cyclists and outdoor enthusiasts thanks to WatchOS 10. Offline and topographic maps are now available in Apple Maps and the compass app supports cellular waypoints. This means it shows the last place you had a signal so you can make a call and check messages on your own carrier, or a spot where you can make an emergency call on any network. 

Apple Watch Ultra cellular waypoint

Cyclists get two big updates with WatchOS 10: support for Bluetooth accessories like power meters and being able to see your metrics as a live activity on the iPhone. Both features work for indoor and outdoor cycling workouts. 

From a safety perspective, I love seeing the live activity on screen, because you don’t want to lift off the handlebars all the time to see your stats on the watch. It shows you all the same detail as the Apple Watch but on a much larger surface area. If you pair the watch with a cycling accessory like power meter pedals you can also see more in-depth data like cadence, speed and power, including functional threshold power.

You’re also getting a few new Ultra-exclusive watch faces including Modular Ultra, which has a horizontal complication slot and the option to show the time nice and big. It’s coming to the original Ultra too. Night mode on this watch face and the Wayfinder face now activates automatically using the ambient light sensor, instead of turning the digital crown like before. 

Apple Watch Ultra 2 is faster thanks to that S9 chip 

Aside from Double Tap, the S9 chip also supports on-device Siri, which is helpful because it’s faster and works when the Ultra 2 or your iPhone doesn’t have a signal. You can do things like start timers, start a workout, or even add a waypoint in the Compass app with your voice.

Later in the year, you’ll be able to ask Siri for health data, such as how many hours you slept or log medications. I wish that feature was active at launch, because it’s probably one of the big reasons I’d choose to use Siri on the watch rather than pull out my phone.

To see if there was a tangible difference in performance between the first and second Ultras, I ran a couple of side-by-side tests. Opening apps was the same, but the Ultra 2 turned on 20 seconds faster than the first Ultra. Message dictation was faster on the Ultra 2, but the biggest perk is it’s more accurate, especially getting my Australian accent right.

Apple Watch Ultra 2 performance

The Apple Watch Ultra 2 also has the same new ultra wideband chip found in the Apple Watch Series 9 that supports precision finding. You do need an iPhone 15 or 15 Pro to take advantage, otherwise you’ll just hear the familiar chime when you ping your phone from the watch.

I also appreciate that the Ultra 2 doubles the internal storage to 64GB of the original, a big deal for any media storage but especially for offline music. Unlike earlier Apple Watches, there is no limit to the amount of manual music downloads you can make on the watch. 

Apple Watch Ultra 2 battery life is the same as before

There’s not much new when it comes to battery life as the Ultra 2 lasts the same amount of time as the first Ultra. It’s tricky to give a catch-all estimate of how long the battery will last since everyone uses their watch differently, but I get close to two full days of use out of the Ultra 2 on a single charge with notifications, a GPS workout and sleep tracking. Apple’s official rating is up to 36 hours with regular use, but it’s possible to get almost three days with light use and by not using LTE, playing music or tracking sleep.

For extended outdoor workouts with GPS, you can expect up to 12 hours, which is enough for a marathon or century ride. There’s also a low power mode that can now get up to 72 hours of runtime out of the Ultra 2 thanks to performance optimizations and the new chip. Compare that with the 60 hours Apple quoted for the first Ultra. I still have more battery testing to run with the Ultra 2, especially around LTE connectivity, so check back soon for more. You can also charge the Ultra 2 from the iPhone 15, thanks to USB-C.

While it’s a good thing that Apple managed to maintain the same battery life while adding resource-intensive tools like a brighter screen and S9 chip, I would have preferred to keep the same screen on the original Ultra and get more runtime as a result.

Apple Watch Ultra 2

Who is the Apple Watch Ultra 2 for?

If you already own the first Apple Watch Ultra, this is a modest update and I’d recommend skipping the Ultra 2, especially since Apple’s always good at delivering feature updates to older watches through software. If you’re coming from an earlier Apple Watch Series, it’s more compelling because you get a completely new design, a huge screen and better battery life.

The Ultra 2 feels like it’s forging its own path compared with other sports and endurance watches because you can wear it everywhere, for almost any activity. Most importantly, it’s a true smartwatch: there are no compromises on app support, cellular connectivity or that seamless second screen experience that you often miss out on with competing sports watches.

The Apple Watch Ultra 2 is still missing a way to interpret all your health and fitness data with recovery metrics. I hope that’s in the works and maybe something that could be added in a software update.

Apple Watch Ultra 2 vs. Apple Watch Ultra vs. Series 9

Apple Watch Ultra 2 Apple Watch Ultra Apple Watch Series 9
Shape Square Square Square
Watch size 49mm 49mm 41mm, 45mm
Materials, finishes Titanium Titanium Aluminum, stainless steel
Display size, resolution 1.91-inch, 502 x 410-pixel OLED 1.91-inch, 502 x 410-pixel OLED 41mm: 1.61-inch, 430 x 352-pixel OLED; 45mm: 1.77-inch, 484 x 396-pixel OLED
Dimensions 44mm x 49mm x 14.4mm 49 x 44 x 14.4mm 41mm: 35 x 41 x 10.7 mm; 45mm: 38 x 45 x 10.7 mm
Weight 61.4g 61.3g 31.9g-51.5g, depending on size, spec and material
Colors Natural titanium Natural titanium Aluminum: midnight, starlight, silver, pink, Product Red; stainless steel: graphite, silver, gold; Hermes stainless steel: silver, space black
Always On Yes Yes Yes
Interchangable bands Yes Yes Yes
GPS Yes (L1 and L5) Yes Yes (L1)
Automatic workout detection Yes Yes Yes
Compass Yes Yes Yes
Altimeter Yes (operating range: -500m to 9,000m) Yes Yes
Water resistance 10ATM (100 meters) and recreational scuba diving up to 40 meters Yes, up to 100m 5ATM (50 meters)
Calls Yes Yes Yes
Microphone Yes (3-mic array) Yes Yes
Speaker Yes Yes Yes
Voice assistant Yes (Siri, on-device) Yes (Siri) Yes (Siri, on-device)
Mobile Payments Yes (Apple Pay) Yes (Apple Pay) Yes (Apple Pay)
Sleep tracking Yes Yes Yes
Period tracking Yes Yes Yes
Sensors SPo2 (blood oxygen), ECG, optical heart, ambient light, high dynamic range gyroscope, high-g accelerometer, water temperature, depth gauge + app SPo2 (blood oxygen), ECG, optical heart, ambient light, high dynamic range gyroscope, high-g accelerometer, water temperature, depth gauge + app SPo2 (blood oxygen), ECG, optical heart, ambient light, high dynamic range gyroscope, high-g accelerometer
Emergency features International emergency calling, Emergency SOS, crash detection International emergency calling, Emergency SOS, crash detection International emergency calling, Emergency SOS, crash detection
Compatibility iOS 17 iOS 16 iOS 17
Software WatchOS 10 WatchOS 9 WatchOS 10
Processor Apple S9 S8 SiP with 64-bit dual-core processor Apple S9
Connectivity LTE and UMTS, Wi-Fi 4, Bluetooth 5.3 LTE and UMTS, Wi-FI LTE and UMTS, Wi-Fi 4, Bluetooth 5.3
Memory and storage 64GB 64GB 64GB
Power USB-C magnetic fast charging USB-C magnetic fast charging USB-C magnetic fast charging
Battery life Up to 36 hours; up to 72 hours (low power mode) 36-hour battery life, 18 hours on LTE Up to 18 hours; up to 36 hours (low power mode)
Battery capacity Unavailable Unavailable Unavailable
Price (USD) $799 $799 41mm: from $399; 45mm: from $429
Price (GBP) £799 £849 41mm: from £399; 45mm: from £429
Price (AUD) AU$1,399 AU$1,299 41mm: from AU$649; 45mm: from AU$699

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Tariffs Explained: Latest on Trump’s Shifting Import Tax Plan, and What It Means

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Apple, I’m (Sky) Blue About Your iPhone 17 Air Color

Commentary: The rumored new hue of the iPhone 17 Air is more sky blah than sky blue.

I can’t help but feel blue about the latest rumor that Apple’s forthcoming iPhone 17 Air will take flight in a subtle, light-hued color called sky blue.

Sky blue isn’t a new color for Apple. It’s the featured shade of the current M4 MacBook Air, a shimmer of cerulean so subtle as to almost be missed. It’s silver left too close to an aquarium; silver that secretly likes to think it’s blue but doesn’t want everyone else to notice.

Do Apple employees get to go outside and see a real blue sky? It’s actually vivid, you can check for yourself. Perhaps the muted sky blue color reflects a Bay Area late winter/early spring frequent layer of clouds like we typically see here in Seattle.

«Who cares?» you might find yourself saying. «Everyone gets a case anyway.» I hear you and everyone else who’s told me that. But design-focused Apple is as obsessive about colors as they are about making their devices thinner. And I wonder if their heads are in the clouds about which hues adorn their pro products.

Making the case for a caseless color iPhone

I’m more invested in this conversation than most — I’m one of those freaks who doesn’t wrap my phone in a case. I find cases bulky and superfluous, and I like to be able to see Apple’s design work. Also, true story, I’ve broken my iPhone screen only twice: First when it was in a «bumper» that Apple sent free in response to the iPhone 4 you’re-holding-it-wrong Antennagate fiasco, and second when trying to take long exposure starry night photos using what I didn’t realize was a broken tripod mount. My one-week-old iPhone 13 Pro slipped sideways and landed screen-first on a pointy rock. A case wouldn’t have saved it.

My current model is an iPhone 16 Pro in black titanium — which I know seems like avoiding color entirely — but previously I’ve gone for colors like blue titanium and deep purple. I wanted to like deep purple the most but it came across as, in the words of Patrick Holland in his iPhone 14 Pro review, «a drab shade of gray or like Grimace purple,» depending on the light.

Pros can be bold, too

Maybe the issue is too many soft blues. Since the iPhone Pro age began with the iPhone 11 Pro, we’ve seen variations like blue titanium (iPhone 15 Pro), sierra blue (iPhone 13 Pro) and pacific blue (iPhone 12 Pro).

Pacific blue is the boldest of the bunch, if by bold you mean dark enough to discern from silver, but it’s also close enough to that year’s graphite color that seeing blue depends on the surrounding lighting. By comparison, the blue (just «blue») color of the iPhone 12 was unmistakably bright blue.

In fact, the non-Pro lines have embraced vibrant colors. It’s as if Apple is equating «pro» with «sophisticated,» as in «A real pro would never brandish something this garish.» I see this in the camera world all the time: If it’s not all-black, it’s not a «serious» camera.

And yet I know lots of pros who are not sophisticated — proudly so. People choose colors to express themselves, so forcing that idea of professionalism through color feels needlessly restrictive. A bright pink iPhone 16 might make you smile every time you pick it up but then frown because it doesn’t have a telephoto camera.

Color is also important because it can sway a purchase decision. «I would buy a sky blue iPhone yesterday,» my colleague Gael Cooper texted after the first rumor popped online. When each new generation of iPhones arrive, less technically different than the one before, a color you fall in love with can push you into trading in your perfectly-capable model for a new one.

And lest you think Apple should just stick with black and white for its professional phones: Do you mean black, jet black, space black, midnight black, black titanium, graphite or space gray? At least the lighter end of the spectrum has stuck to just white, white titanium and silver over the years.

Apple never got ahead by being beige

I’m sure Apple has reams of studies and customer feedback that support which colors make it to production each year. Like I said, Apple’s designers are obsessive (in a good way). And I must remind myself that a sky blue iPhone 17 Air is a rumored color on a rumored product so all the usual caveats apply.

But we’re talking about Apple here. The scrappy startup that spent more than any other company on business cards at the time because each one included the old six-color Apple logo. The company that not only shaped the first iMac like a tipped-over gumdrop, that not only made the case partially see-through but then made that cover brilliant Bondi blue.

Embrace the iPhone colors, Apple.

If that makes you nervous, don’t worry: Most people will put a case on it anyway.

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Astronomers Say There’s an Increased Possibility of Life on This Distant Planet

Using the James Webb Space Telescope, astronomers are working to confirm potential evidence of life on a distant exoplanet dubbed K2-18b.

Astronomers are nearing a statistically significant finding that could confirm the potential signs of life detected on the distant exoplanet K2-18b are no accident.

The team of astronomers, led by the University of Cambridge, used data from the James Webb Space Telescope (which has only been in use since the end of 2021) to detect chemical traces of dimethyl sulfide (DMS) and/or dimethyl disulfide (DMDS), which they say can only be produced by life such as phytoplankton in the sea. 

According to the university, «the results are the strongest evidence yet that life may exist on a planet outside our solar system.»

The findings were published this week in the Astrophysical Journal Letters and point to the possibility of an ocean on this planet’s surface, which scientists have been hoping to discover for years. In the abstract for the paper, the team says, «The possibility of hycean worlds, with planet-wide oceans and H2-rich atmospheres, significantly expands and accelerates the search for habitable environments elsewhere.»

Not everyone agrees, however, that what the team found proves there’s life on the exoplanet.

Science writer and OpenMind Magazine founder Corey S. Powell posted about the findings on Bluesky, writing, «The potential discovery of alien life is so enticing that it drags even reputable outlets into running naive or outright misleading stories.» He added, «Here we go again with planet K2-18b.Um….there’s strong evidence of non-biological sources of the molecule DMS.»

K2-18b is 124 light-years away and much larger than Earth (more than eight times our mass), but smaller than Neptune. The search for signs of even basic life on a planet like this increases the chances that there are more planets like Earth that may be inhabitable, with temperatures and atmospheres that could sustain human-like lifeforms. The team behind the paper hopes that more study with the James Webb Space Telescope will help confirm their initial findings.

More research to do on finding life on K2-18b

The exoplanet K2-18b is not the only place where scientists are exploring the possibility of life, and this research is still an early step in the process, said Christopher Glein, a geochemist, planetary researcher and lead scientist at San Antonio’s Southwest Research Institute. Excitement over the significance of the research, he said, should be tempered.

«We need to be careful here,» Glein said. «It appears that there is something in the data that can’t be explained, and DMS/DMDS can provide an explanation. But this detection is stretching the limits of JWST’s capabilities.»

Glein added, «Further work is needed to test whether these molecules are actually present. We also need complementary research assessing the abiotic background on K2-18b and similar planets. That is, the chemistry that can occur in the absence of life in this potentially exotic environment. We might be seeing evidence of some cool chemistry rather than life.»

The TRAPPIST-1 planets, he said, are being researched as potentially habitable, as is LHS 1140b, which he said «is another astrobiologically significant exoplanet, which might be a massive ocean world.»

As for K2-18b, Glein said many more tests need to be performed before there’s consensus on life existing on it.

«Finding evidence of life is like prosecuting a case in the courtroom,» Glein said. «Multiple independent lines of evidence are needed to convince the jury, in this case the worldwide scientific community.» He added, «If this finding holds up, then that’s Step 1.»

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