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
Up to 1,000 nits brightness
Nearly 20% more screen area than Apple Watch SE
Retina display
Up to 1,000 nits brightness
Always-On Retina display
Up to 2,000 nits brightness
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
notification
Irregular rhythm
notification
Irregular rhythm
notification
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
International
emergency calling
International
emergency calling
International
emergency calling
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
Audible up to 180 metres
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
connectivity
Available mobile
connectivity
Supports Family Setup (GPS + Cellular models)
Connect family members who don’t have an iPhone
Supports Family Setup (GPS + Cellular models)
Connect family members who don’t have an iPhone
Supports Family Setup
Connect family members who don’t have an iPhone
Up to 18 hours
Up to 18 hours
Up to 36 hours