Size and Weight
Height: 49mm
Width: 44mm
Depth: 12mm
Resolution: 422 by 514 pixels
Display area: 1245 sq mm
Weight (natural): 61.6 grams
Weight (black): 61.8 grams
Fits: 130–210mm wrists
Hardware and Buttons: Microphone, Speaker, Customizable Action button, Siren/Speaker, Antennas (GPS, cellular/satellite), Microphone, Side button, Microphone, Digital Crown, Depth gauge/Water temperature sensor/Altimeter
Controls: Customizable Action button, Digital Crown with haptic feedback, Side button, Double tap and wrist flick gestures, Siri with on-device processing
Chip: S10 chip with 64-bit dual-core processor, 4-core Neural Engine, 64GB capacity
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
Health and Wellness: Blood Oxygen app, ECG app, Cycle Tracking app with retrospective ovulation estimates, Heart Rate app, High and low heart rate notifications, Irregular rhythm notifications, Medications app, Mindfulness app with state of mind tracking, Noise app, Sleep app including sleep stages, Sleep score, Sleep apnea notifications, Hypertension notifications
Display: Always-On Retina display with wide-angle OLEDs and LTPO, 1Hz refresh, Active area (422 by 514 pixels, 326 pixels per inch), Flat sapphire crystal display, Up to 3000 nits peak brightness, 1 nit minimum brightness, Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)
Audio: Three-microphone array with beamforming and wind noise mitigation, Dual speakers, Media playback, Siren
Power and Battery Life: Multiday battery life, up to 42 hours of normal use, Up to 72 hours in Low Power Mode, Built-in rechargeable lithium-ion battery, Fast-charge capable, Up to 80% charge in about 45 minutes, 15 minutes for up to 12 hours of normal use, 5 minutes for up to 8 hours of sleep tracking
Operating System: watchOS, the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected
Durability: Water resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:2010, Dust resistance IP6X under IEC 60529, EN13319 recreational scuba diving to 40m (±1m accuracy), Tested to MIL-STD 810H against subsections for altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration
Connectivity: L1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou), Cellular: Supports RedCap for 5G and LTE, Wi-Fi 4 (802.11n), Support for 2.4GHz and 5GHz Wi-Fi networks, Bluetooth 5.3, Second-generation Ultra Wideband chip, NFC: Apple Pay, GymKit, Support for Apple Watch For Your Kids, International roaming
Compatibility: iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 26 or later