Finishes
- Aluminum
- Gold
Features
- GPS/GNSS
- Compass
- Always-on altimeter
- Water resistant (50 meters1)
- Blood oxygen sensor (Blood Oxygen app)2
- Electrical heart sensor (ECG app)3
- Second-generation optical heart sensor
- International emergency calling5
- Emergency SOS4
- Accelerometer (up to 32 g-forces with fall detection)
- Gyroscope
- Ambient light sensor
- Speaker
- Microphone
- Apple Pay
- GymKit
- Capacity 32GB
- Ceramic and sapphire crystal back
Display
- 44mm
368 by 448 pixels
977 sq mm display area - 40mm
324 by 394 pixels
759 sq mm display area - Always-On Retina LTPO OLED display
1000 nits brightness
Chip
- S6 SiP with 64-bit dual-core processor
- W3 (Apple wireless chip)
- U1 chip (Ultra Wideband)
Connectivity
- Wi-Fi
802.11b/g/n 2.4GHz and 5GHz - Bluetooth 5.0
Power
- Built-in rechargeable lithium-ion battery
Up to 18 hours8 - Magnetic charging cable
Dimensions
40mm
- Height: 40mm
- Width: 34mm
- Depth: 10.4mm
44mm
- Height: 44mm
- Width: 38mm
- Depth: 10.4mm
Weight
40mm
- Aluminum: 30.5g
- Stainless Steel: 39.7g
- Titanium: 34.6g
44mm
- Aluminum: 36.5g
- Stainless Steel: 47.1g
- Titanium: 41.3g
