Size and Weight
For 46mm series:
Height: 46mm
Width: 39mm
Depth: 9.7mm
Resolution: 416 by 496 pixels
Display area: 1220 sq mm
Fits: 140–245mm wrists
For 42mm series:
Height: 42mm
Width: 36mm
Depth: 9.7mm
Resolution: 374 by 446 pixels
Display area: 989 sq mm
Fits: 130–200mm wrists
Hardware and Buttons: Display, Digital Crown, Microphone with Voice Isolation, Side button, Band release button, Electrical heart sensor, Speaker/air vent, Blood oxygen sensor and optical heart sensor, Band release button
Controls: Digital Crown with haptic feedback, Side button, Double tap and wrist flick gestures, Siri with on-device processing
Chip: S10 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, Compass, Always-on altimeter, High-g accelerometer, High dynamic range gyroscope, Ambient light sensor, Depth gauge to 6 meters, Water temperature sensor
Display: Always-On Retina display with wide-angle OLEDs and LTPO, Ion-X front glass with 2x scratch resistance (aluminum cases), Sapphire front crystal (titanium cases), Up to 2000 nits peak brightness, 1 nit minimum brightness, 326 pixels per inch
Audio: Speaker, Microphone, Media playback
Power and Battery Life: All-day battery life, up to 24 hours of normal use, Up to 38 hours in Low Power Mode, Built-in rechargeable lithium-ion battery, Fast-charge capable, Up to 80% charge in about 30 minutes, 15 minutes for up to 8 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
Safety: Emergency SOS, International emergency calling, Crash Detection, Fall Detection, Noise monitoring, Backtrack
Durability: Water resistance 50m (swimproof), Dust resistance IP6X
Connectivity: L1 GPS, GLONASS, Galileo, QZSS, and BeiDou, 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, Apple Pay, GymKit
Compatibility: iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 26 or later