Specifications
| Size and Weight | |
| Height (42mm version) | 42mm |
| Width (42mm version) | 36mm |
| Depth (42mm version) | 9.7mm |
| Display (42mm version) | 374 by 446 pixels, 989 sq mm display area |
| Weight (Aluminum, GPS, 42mm) | 30 grams |
| Weight (Aluminum, GPS + Cellular, 42mm) | 29.3 grams |
| Weight (Titanium, 42mm) | 34.4 grams |
| Wrist Fit (42mm version) | Fits 130‑200mm wrists |
| Hardware and Buttons | |
| Display | Digital Crown, Microphone with voice isolation, Side button, Band release button |
| Sensors | Electrical heart sensor, Speaker/air vent, Blood oxygen sensor, Optical heart sensor |
| Controls | |
| Digital Crown | With haptic feedback |
| Side Button | Included |
| Double Tap Gesture | Included |
| Chip | |
| Processor | S10 SiP with 64‑bit dual core processor, 4‑core Neural Engine, 64GB capacity |
| Sensors | |
| Sensors | Electrical heart sensor, Optical heart sensor, Blood oxygen sensor, Temperature sensor, Compass, Altimeter, Accelerometer, Gyroscope, Ambient light sensor, Depth gauge, Water temperature sensor |
| Health and Wellness | |
| ECG App | Yes |
| Cycle Tracking App | With retrospective ovulation estimates |
| Heart Rate App | Yes |
| Blood Oxygen App | Yes |
| Notifications | High and low heart rate, Irregular rhythm notifications, Abnormal sound notifications |
| Sleep App | With sleep stages |
| Display | |
| Type | Always‑On Retina LTPO3 display, Wide-angle OLED |
| Brightness | Up to 2000 nits maximum, 1 nit minimum, Up to 40% brighter when viewed at an angle |
| Glass | Ion‑X front glass (aluminum cases), Sapphire front crystal (titanium cases) |
| Pixels Per Inch | 326 pixels per inch |
| Audio | |
| Speaker | Included |
| Media Playback | Supported |
| Power and Battery Life | |
| Battery Life | Up to 18 hours of normal use, 36 hours in Low Power Mode |
| Charging | Fast-charge capable: Up to 80% in 30 minutes, 15 minutes for up to 8 hours of normal use |
| Operating System | watchOS 11, Designed for activity, health, safety, and connectivity |
| Workouts and Activity | |
| Running | Custom workouts, Customizable views, Heart Rate Zones, Stride length, Race Route, Pacer |
| Hiking | Compass with bearing, Custom waypoints, Backtrack GPS data, Offline maps, Curated hikes in U.S. national parks |
| Cycling | Speed, Elevation, Bluetooth accessory support, Cadence, Live Activity on iPhone |
| Swimming | Pool and open water workouts, Stroke detection, SWOLF score, Kickboard detection, Laps, Distance |
| More Workouts | Skiing, Snowboarding, Outdoor Rowing, Paddling, Golf, Walk, Yoga, HIIT, Dance, Tai Chi, Wheelchair, and more |
| Safety | |
| Emergency SOS, Fall Detection, Crash Detection | Yes |
| Water Resistance | 50m (swimproof) |
| Dust Resistance | IP6X |
| Connectivity | |
| GPS, GNSS, Galileo, BeiDou | Supported |
| Wi-Fi | Wi-Fi 4 (802.11n) |
| Bluetooth | Bluetooth 5.3 |
| Ultra Wideband | Second-generation Ultra Wideband chip |
| Accessibility | Built-in features for vision, mobility, hearing, and cognitive disabilities |
| Environmental Requirements | |
| Operating Temperature | 0° to 35°C (32° to 95°F) |
| Storage Temperature | –20° to 45°C (–4° to 113°F) |
| Relative Humidity | 5% to 90% non-condensing |
| Operating Altitude | 0m to 3000m (0 feet to 10,000 feet) |
