45-mm or 41-mm case size Edge-to-edge display 44-mm or 40-mm case size 49-mm case size Flat sapphire front crystal with display edge protection Certified–IP6X dust-resistant Certified–IP6X dust-resistant Customisable Action button
Always-On Retina display Nearly 20% more screen area than Apple Watch SE
Retina display
Always-On Retina display Nearly 27% more screen area than Apple Watch SE
Water-resistant Swim-proof
Water-resistant Swim-proof
Water-resistant Swim-proof and recreational dive to 40 m
Depth gauge with water temperature sensor Oceanic+ app for use as a dive computer (available on App Store) Blood Oxygen app Blood Oxygen app High- and low-heart-rate notifications High- and low-heart-rate notifications High- and low-heart-rate notifications Irregular rhythm Irregular rhythm Irregular rhythm
Cardio fitness notifications Cardio fitness notifications Cardio fitness notifications Temperature sensing Temperature sensing
Cycle Tracking with retrospective ovulation estimates Cycle Tracking Cycle Tracking with retrospective ovulation estimates Emergency SOS Emergency SOS Emergency SOS International International International Fall Detection Fall Detection Fall Detection Crash Detection Crash Detection Crash Detection High-g accelerometer High-g accelerometer High-g accelerometer Gyroscope Gyroscope Gyroscope Compass Backtrack Compass Backtrack Compass Backtrack
86-decibel siren to attract attention Redesigned Compass app with Waypoints and Backtrack Redesigned Compass app with Waypoints and Backtrack Redesigned Compass app with Waypoints and Backtrack GPS GPS Precision dual-frequency GPS
Always-on altimeter Always-on altimeter Always-on altimeter
Available mobile
Available mobile
Supports Family Setup (GPS + Cellular models)
Supports Family Setup (GPS + Cellular models)
Supports Family Setup Up to 18 hours Up to 18 hours Up to 36 hours |