49mm titanium case size
Carbon neutral combinations available1
S9 SiP
Double tap gesture^
Faster on-device Siri with health data access^
Precision Finding for iPhone2
Blood Oxygen app3
ECG app4
High and low heart rate notifications4
Irregular rhythm notifications5
Low cardio notifications
Temperature sensing6
Cycle Tracking with retrospective ovulation estimates7
Emergency SOS8
International emergency calling9
Fall Detection and Crash Detection8
Siren
Water resistant12
Swimproof
High-speed water sports
Recreational dive to 40m
Precision dual‑frequency GPS
Cellular connectivity13
Supports Family Setup (GPS + Cellular models)14
Connect family members who don’t have an iPhone
Up to 36 hours normal use18
Up to 72 hours in Low Power Mode18
Fast charging17
