Size:
- 41mm or 45mm case size
- 1.7mm thin borders
- 20% larger display than Series 6
- 50% larger display than Series 3
- Slimmer design with a more rounded corner
Sensors:
- Electrical heart sensor
- ECG app
- Blood Oxygen sensor
- Third-generation optical heart sensor
- Accelerometer (up to 32 g-forces with fall detection)
- Gyroscope
- Ambient light sensor
- Temperature sensor (new)
- Crash detection sensor (new)
Health Features:
- Blood Oxygen app
- ECG app
- Heart rate notifications
- Irregular heart rhythm notification
- Fall detection and emergency SOS
- Sleep tracking
- Workout tracking
- Menstrual cycle tracking (new)
- Medication tracking (new)
Connectivity:
- LTE and UMTS (GPS + Cellular models)
- Wi-Fi (802.11b/g/n 2.4GHz and 5GHz)
- Bluetooth 5.3 (new)
- GPS, GLONASS, Galileo, and QZSS
Network:
- Cellular connection for Emergency SOS (GPS + Cellular)
- International emergency calling (GPS + Cellular)
- Wi-Fi Calling (Apple Watch without cellular)
Battery Life:
- Up to 18 hours
- Faster charging (33% faster, 8 minutes for 8 hours of sleep tracking)
- Low Power Mode (new)
Water Resistance:
- 50 meters under ISO standard 22810:2010
- Suitable for shallow-water activities like swimming in a pool or ocean
Colors:
- Aluminum:
- Midnight
- Starlight
- Silver
- Product (RED)
- Blue
- Stainless Steel:
- Gold
- Graphite
- Silver
- Titanium:
- Space Black
- Titanium
- New colors:
- Silver with a Starlight Sport Band
- Graphite with a Midnight Sport Band
Other Features:
- Always-on display
- Full on-screen keyboard with QuickPath entry
- Larger buttons in some apps
- New watch faces (Contour, Modular Duo, Bounce, Metropolitan)
- Compatible with older Apple Watch bands
- New Sport and Solo Loop colors, Nike and Hermès bands
- watchOS 9 operating system (new)
