Key Feature:
50 m water resistant
Swimproof
Certified IP6X dust resistant
Always-On Retina display
Up to 1,000 nits brightness
Blood Oxygen app
ECG app
High and low heart rate notifications
Irregular rhythm notification
Cardio fitness notifications
Temperature sensing
Cycle Tracking with retrospective ovulation estimates
Emergency SOS
International Emergency Calling
Fall Detection
Crash Detection
High-g accelerometer
Cellular available