Feature Specification Model Apple Watch Ultra 3 Case Size 49mm Case Material Titanium Display Always-On Retina Display, Wide-angle OLED, LTPO3 Brightness Up to 3000 nits Chipset S10 chip Connectivity Cellular Satellite, 5G capable GPS Precision dual-frequency GPS Water Resistance 100m – Swim, snorkel, scuba, high-speed water sports Depth Gauge Up to 40m Water Temperature Sensor Yes Health Monitoring Hypertension notifications, ECG app, High/Low heart rate, Irregular rhythm, Low cardio fitness, Blood Oxygen app, Sleep tracking, Sleep apnea notifications, Sleep score, Temperature sensing, Vitals app (heart rate, respiratory rate, wrist temperature, sleep duration), Cycle tracking with retrospective ovulation estimates Safety Features Emergency SOS, Emergency SOS via satellite, International emergency calling, Fall Detection, Crash Detection, Built-in Siren Gestures Wrist flick gesture, Double tap gesture Assistant On-device Siri with health data access Extra Features Precision Finding for iPhone Battery Life Up to 42 hours (normal use), Up to 72 hours (Low Power Mode) Charging Fast-charge capable: 0–80% in ~45 minutes; 15 minutes for up to 12 hours Durability Designed for extreme conditions, Titanium build, Sports & Adventure ready Category: iPhone and Apple Products
