Apple Watch Ultra Features: To build the ultimate sports watch, we crafted every element with painstaking attention to detail for unparalleled performance. Titanium strikes the perfect balance between weight, ruggedness, and corrosion resistance. The new case design rises up to surround the flat sapphire crystal and protect it from edge impacts. The Digital Crown is larger and the side button is raised from the case, making them easier to use while you’re wearing gloves. The biggest and brightest Apple Watch display ever. Direct sunlight is no obstacle for an Always‑On Retina display that’s an eye-opening 2000 nits at its peak and twice as bright as any other Apple Watch. And the bigger display provides more room for workout metrics and detail‑packed watch faces. Wayfinder watch face with Night Mode. Specifically for Apple Watch Ultra, the Wayfinder face features a time dial that can be switched to a live compass and has room for eight complications. In low light situations, you can rotate the Digital Crown to activate Night Mode and see the watch face turn a vivid red. Ready for Action. The new Action button gives you quick, physical control over a variety of functions. It’s customizable and can do things like control a workout, mark a Compass Waypoint, or begin a dive. Just like you, it’s full of potential. Battery life for days. When you’re on the second day of a backpacking trip, the final leg of a triathlon, or diving along a coral reef, the last thing you want to think about is running out of battery. With longer battery life than ever, you can take on almost anything and have energy to spare.1 Hike, run, dive. There’s a band for that. Making the ultimate sports watch for athletes of all kinds required a unique approach. That’s why specialized bands for outdoor adventures, endurance training, and water sports are as meticulously crafted as the watch itself. Whether it’s your first run in a while, a 10K, or an ultramarathon, it takes a special kind of person to seek out challenges that test you physically. Apple Watch Ultra is the training partner to help you push your limits. Find strength in numbers. Making progress as an athlete requires accurate data and insights. Updates to the Workout app like new metrics and views give you all the information you need to be and beat your best. The larger display lets you see up to six metrics at once. GPS performance is critical for athletes who want the most precise metrics, whether they’re training in urban streets or out in the wild. Apple Watch Ultra features a new precision dual-frequency GPS system that provides amazing accuracy in the most difficult locations. Designed to take on extreme environments, elevations, and temperatures, Apple Watch Ultra is an essential exploration tool that can take you everywhere. And help get you home. An accurate compass is as crucial for navigating the wild as a solid pair of boots. The redesigned Compass app delivers all‑new views and functionality that take wrist‑driven orienteering to new heights. Specifications: Finishes GPS + Cellular Natural titanium Case Size And Weight 49mm by 44mm by 14.4mm 61.3 grams Display 49mm 410 by 502 pixels 1164 sq mm display area Always-On Retina LTPO OLED display Up to 2000 nits brightness Features L1 and L5 GPS, GLONASS, Galileo, QZSS, and BeiDou Compass Always-on altimeter Water resistant 100 meters Blood oxygen sensor (Blood Oxygen app) Electrical heart sensor (ECG app) Third-generation optical heart sensor International emergency calling Emergency SOS International roaming High-g accelerometer Up to 256 g-forces with Fall Detection and Crash Detection High dynamic range gyroscope Ambient light sensor Water temperature sensor Depth gauge Dive ready to 40m / 130 ft. Dual speakers 40% louder than Series 8 Three-microphone array with beamforming and wind noise mitigation Apple Pay GymKit Capacity 32GB GPS + Cellular Ceramic and sapphire crystal back GPS + Cellular Chip S8 with 64-bit dual-core processor W3 Apple wireless chip U1 chip (Ultra Wideband) Connectivity LTE and UMTS GPS + Cellular models Wi-Fi 802.11b/g/n 2.4GHz and 5GHz Bluetooth 5.3 Power Built-in rechargeable lithium-ion battery: Up to 36 hours; Up to 18 hours LTE USB-C magnetic fast charging cable Environmental Features 100% recycled tungsten in the Taptic Engine 100% recycled rare earth elements in all magnets 100% recycled tin in the SiP Energy efficient Responsible packaging Arsenic-free display glass Mercury-, BFR-, PVC-, and beryllium-free