High and low heart rate notifications1
Irregular rhythm notifications2
Low cardio fitness notifications
Sleep Tracking
-
Vitals app featuring heart rate, respiratory rate, and sleep duration4
-
Cycle Tracking6
Emergency SOS7
International emergency calling8
Fall Detection and Crash Detection7, 9
-
Water resistant10
Swimproof10
-
-
-
-
GPS
Available cellular connectivity13
S8 SiP
-
Siri
Find iPhone
Up to 18 hours normal use17
Low Power Mode
-
Apple Watch Series 10
From $399
46mm or 42mm aluminum or titanium case size
LTPO3 OLED Always‑On Retina display
Wide-angle OLED
Up to 2000 nits
Up to 40% brighter when viewed at an angle
ECG app1
High and low heart rate notifications1
Irregular rhythm notifications2
Low cardio fitness notifications
Sleep Tracking
Sleep apnea notifications3
Vitals app featuring heart rate, respiratory rate, wrist temperature, and sleep duration4
Temperature sensing5
Cycle Tracking with retrospective ovulation estimates6
Emergency SOS7
International emergency calling8
Fall Detection and Crash Detection7, 9
-
Water resistant11
Swimproof11
Depth gauge to 6m
Water temperature sensor
-
-
GPS
Available cellular connectivity13
S10 SiP
Double tap gesture
Faster on-device Siri with health data access15
Precision Finding for iPhone16
Up to 18 hours normal use18
Up to 36 hours in Low Power Mode18
Faster charging (0–80% in about 30 minutes)20
Apple Watch Ultra 2
From $799
49mm titanium case size
LTPO2 OLED Always‑On Retina display
-
Up to 3000 nits
-
ECG app1
High and low heart rate notifications1
Irregular rhythm notifications2
Low cardio fitness notifications
Sleep Tracking
Sleep apnea notifications3
Vitals app featuring heart rate, respiratory rate, wrist temperature, and sleep duration4
Temperature sensing5
Cycle Tracking with retrospective ovulation estimates6
Emergency SOS7
International emergency calling8
Fall Detection and Crash Detection7, 9
Siren
Water resistant12
Swimproof12
Depth to gauge 40m
Water temperature sensor
High-speed water sports
Recreational scuba to 40m
Precision dual‑frequency GPS
Cellular connectivity14
S9 SiP
Double tap gesture
Faster on-device Siri with health data access15
Precision Finding for iPhone16
Up to 36 hours normal use19
Up to 72 hours in Low Power Mode19
Fast charging (0–80% in about 1 hour)20