Apple Watch Ultra 4 GPS + Cellular, 49mm Titanium Case
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| iPhone Specifications | |
| Sensors | Electrical heart sensor Third-generation optical heart sensor Blood oxygen sensor Temperature sensor Depth gauge Water temperature sensor Compass Always-on altimeter High-g accelerometer High dynamic range gyroscope Ambient light sensor |
| Apple Watch | |
| Features | Running Custom workouts Customizable Workout Views Training Load / Workout Effort Tracking Heart Rate Zones (customizable) Postworkout heart rate VO2 max Race Route Pacer Precision Start using Action button Cadence, Stride Length, Ground Contact Time, Vertical Oscillation, and Running Power Automatic track detection Multisport workout Heart Rate Zone, pace, and target alerts Hiking Compass with bearing, incline, elevation, and coordinates Custom waypoints Automatically generated waypoints to cellular connectivity Backtrack GPS data Offline maps with custom route creation16 Elevation alerts Topographic maps for thousands of national and regional parks (U.S. only) Hundreds of curated hikes across all 63 U.S. national parks Siren Cycling Custom workouts Customizable Workout Views Training Load / Workout Effort Tracking Average speed, elevation gained, and distance Bluetooth-compatible with power meters Functional Threshold Power (with power meter connection) Live Activity on iPhone Heart Rate Zones (customizable) Cadence (rpm), speed (mph), power (watts), power zones (with power meter connection) Postworkout heart rate Swimming Custom workouts (pool swim) with haptics to cue the next interval Customizable Workout Views (pool swim, open water swim) Splits and auto sets SWOLF score Automatic stroke and count detection (including kickboard) Water temperature Average pace, total distance, heart rate, and laps Diving Recreational dive to 40m Dive computer app (available on the App Store)17 Automatic launch at 1m Current and maximum depth duration GPS entry and exit points Depth gauge Water temperature sensor |
| Display | Always‑On Retina display with wide‑angle OLEDs and LTPO3 1Hz refresh Active area 422 by 514 pixels, 326 pixels per inch Flat sapphire crystal display 3000 nits peak brightness 1 nit minimum brightness Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering) |
| Connectivity | All models Support for 2.4GHz and 5GHz Wi‑Fi networks Wi‑Fi 4 (802.11n) Bluetooth 5.3 Precision dual‑frequency GPS (GPS, Galileo, QZSS, and BeiDou) Second‑generation Ultra Wideband chip Apple Pay GymKit Model A3579 Supports RedCap for 5G and LTE FDD‑5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71) TDD‑5G NR (Bands n38, n40, n41, n53) FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71) TDD‑LTE (Bands 38, 39, 40, 41, 53) Support for Apple Watch For Your Kids International roaming |