Display
Retina LTPO OLED display
Ion-X front glass
Up to 1000 nits maximum brightness
326 pixels per inch

Size and Weight
Height: 44mm
Width: 38mm
Depth: 10.7mm
368 by 448 pixels
977 sq mm display area
Weight (GPS): 32.9 grams

Controls
Digital Crown with haptic feedback
Side button
Siri

Chip
S8 SiP with 64-bit dual-core processor
2-core Neural Engine
32GB capacity

Sensors
Second-generation optical heart sensor
Compass
Always-on altimeter
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor

Health and Wellness
Heart Rate app
High and low heart rate notifications
Irregular rhythm notifications
Medications app
Mindfulness app
Noise app
Sleep app including sleep stages

Power and Battery Life
All-day battery life, up to 18 hours of normal use
Built-in rechargeable lithium-ion battery
Up to 80% charge in about 1.5 hours

Operating System
watchOS 11
watchOS is 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)

Connectivity
L1 GPS, GNSS, Galileo, and QZSS
Wi-Fi 4 (802.11n)
Bluetooth 5.3
Apple Pay
GymKit
Support for Apple Watch For Your Kids

Compatibility
iPhone Xs or later, including iPhone SE (2nd generation or later), with iOS 18 or later

In the Box
Apple Watch SE
Band
Apple Watch Magnetic Charger to USB-C Cable (1m)