Apple Watch Ultra 4: One minute review
The Apple Watch Ultra 4 isn’t a radical aesthetic redesign, but it doesn’t need to be. Apple’s rugged smartwatch keeps the familiar 49mm titanium build, bright display, and customizable Action Button, while upgrades to its rear health sensors and internals make it a more capable companion for everyday wear and endurance workouts. The biggest upgrade is arguably its battery life. Apple promises up to 50 hours of normal use, but I’ve easily managed two days with the Always-On display enabled and sleep tracking running overnight. That’s seriously impressive for a fully featured smartwatch, even if some lower-power rivals like the best Garmin watches can last longer. The new S11 chip keeps everything feeling responsive, with apps opening quickly and watchOS 27 running smoothly. Faster charging is another welcome addition, letting me replenish around 30% of the battery in just 15 to 20 minutes. Health and fitness tracking also gets a meaningful boost. The new Health Sensing System improves measurements, and Readiness Score is one of my favorite additions to watchOS 27. It gives you a useful snapshot of how prepared you might be for the day, without requiring another subscription. It also adds plenty of smaller quality-of-life improvements, including real-time step-count complications. Siri AI also brings more intelligence to the wrist, with features like Shazam and Sound Recognition. Siri Rewind and Live Recap have yet to arrive and prove themselves. The downside is that the Ultra 4 looks and feels much like its predecessor, so Ultra 3 owners may not find enough here to justify an immediate upgrade. And while the battery life is excellent, the Ultra 4 still can’t match every rival in sheer endurance. The Apple Watch Ultra 4 costs $799 / £749 / AU$1,349 and is available now in Natural Titanium or Black Titanium. Both finishes come with Wi-Fi and cellular connectivity, so there’s no need to choose between separate Bluetooth-only and cellular models, as you can with the Apple Watch Series 12. Ultimately, the Apple Watch Ultra 4 is a refined, reliable smartwatch that builds on an already excellent foundation. Its multi-day battery life, capable fitness tracking, and smoother watchOS experience make it a compelling choice for endurance athletes and Apple fans who want a rugged watch that does it all. Apple Watch Ultra 4: Video review

Apple Watch Ultra 4: Specs Table
Component
Apple Watch Ultra 4
Price
$799 / £749 / AU$1,349
Dimension
49 x 44 x 12mm
Weight
63g (without band)
Case/bezel
Grad 5 Titanium
Display
49mm Always-On Retina LTPO3 OLED display (up to 3,000 nits)
Processor
Apple-made S11 chip
GPS
Dual‑Frequency GPS (GPS, Galileo, QZSS, and BeiDou)
Battery life
Up to 50 hours with normal use
Connections
4G LTE, Satellite SOS, Wi‑Fi 4 (802. 11n), Bluetooth 5. 3
Water resistant
Water resistance 100m

Apple Watch Ultra 4: Price and availability
$799 / £749 / AU$1,349
No increase from last year
You’re paying for an LTE model as usual
The Apple Watch Ultra 4 costs $799 / £749 / AU$1,349, and comes in Natural Titanium or Black Titanium, with both finishes including Wi-Fi and cellular connectivity as standard. This means you’re paying for your phone’s ability to add to a data plan whether you want to or not. The watch is more expensive than other Apple Watches, which is standard for the Ultra series, but crucially, it’s the same price as the Apple Watch Ultra 3, with no annual price increase. In an era of an electronics components crisis, this is great news. It’s also absolutely stuffed with features as usual, with a premium build quality that, together, justifies the high price. Value score: 4. 5/5
Apple Watch Ultra 4: Design

(Image credit: Future/Jacob Krol) Redesigned sensor array
Identical display and case
Useful programmable Action button
Like the Apple Watch Ultra 1, 2, and 3 before it, the Ultra 4 stands on its own in Apple’s smartwatch lineup, offering one option: a squircle 49mm screen in a thicker, much more rugged design that’s ready for the road — and truly any road. It still comes in Black or Natural Titanium and looks pretty much the same as previous iterations on your wrist. Still, the one-size-fits-all device is an issue for smaller wrists. I’ve been testing the silver Natural Titanium version, and it’s been a welcome change after rocking the Black Ultra 3 for well over a year. I like the contrast of the silver rim around the 49mm Retina display, and especially how the ‘Ultra Orange’ Action Button on the left side pops against the silver case. The Action Button remains a nice addition for easily running a customized Siri Shortcut or quickly starting a workout, and the 49mm Always-On Retina OLED LTPO3 display still looks great in pretty much any condition, whether that’s under fluorescent lights, in the gym, or outside on a very sunny day. The Action Button sits alongside the speaker and microphone on the left side, while the rugged Digital Crown (with its orange ring) and the main side button live on the right. The top and bottom of the Apple Watch are still where the bands connect, and there’s no change to the connector — fingers crossed Apple never changes that, as it’s exemplary. The main design changes, aside from the new bands, are on the rear. Apple is rolling out a new Health Sensing System to the Ultra 4 and Series 12, which looks a little like a complex sundial on the back of the case. It features a new wider layout for electrodes and diodes to cover a larger surface area on the wrist, which lets the Apple Watch take more accurate health measurements — particularly when tracking heart rate. This is also where the magnetic Apple Watch charger attaches, and the box includes an updated charging puck. It still connects to a wall adapter or another power source via USB-C, with improvements to charging speed. And while the Series 12 is still a stunner and the Ultra 3 could run laps around plenty of other watches, there’s a larger battery inside the Ultra 4. I’ll share more on this in the Performance section, but battery life is seriously impressive, surpassing its 50 listed hours. Aside from the Health Sensing System on the back, though, much of the design here is Apple sticking with what has made the Ultra successful since its launch. It’s an ultra-rugged, road-ready Apple Watch that’s likely a necessity for endurance athletes, but its distinctive build also appeals to those who simply want something different from the standard Apple Watch. Design score: 5/5
Apple Watch Ultra 4: Features

(Image credit: Future/Jacob Krol) Readiness score is excellent
Siri AI features to come
Improved vitals app
With the design mostly unchanged, much of what’s new with the Apple Watch Ultra 4 comes from watchOS 27 and its health and activity features. I’m starting with the latter, as it’s truly been the highlight of my testing. I’ve worn an Apple Watch since it first launched in the spring of 2015. My original aluminum model arrived on launch day, and I was admittedly hooked on closing my rings. Now, after more than a month with the Ultra 4 — alongside the Apple Watch Series 12 — my new favorite feature is Readiness Score. It received a big round of applause at the launch event, and for good reason: it fills a gap in Apple’s health feature set compared with the competition. Many other wearables, including smartwatches and smart rings, offer ways to contextualize your data and help you understand what it means. Most notably, the Oura Ring provides a daily score that gives you an idea of what you’re ready to take on. It’s not medical advice, of course, but it can help you make sense of the data it collects…