Apple Watch Ultra 3 Black/Black Alpine Loop
Description
49mm titanium case
Always-On Retina display
Up to 3000 nits
Wide-angle OLED
LTPO3
Hypertension notifications
ECG app
High and low heart rate notifications
Irregular rhythm notifications
Low cardio fitness notifications
Blood Oxygen app
Sleep Tracking
Sleep apnea notifications
Sleep score
Vitals app featuring heart rate, respiratory rate, wrist temperature, and sleep duration
Temperature sensing
Cycle Tracking with retrospective ovulation estimates
Emergency SOS
Emergency SOS via satellite
International emergency calling
Fall Detection and Crash Detection
Siren
Water resistant 100m
Swim, snorkel, scuba, high-speed water sports
Depth gauge to 40m
Water temperature sensor
Precision dual-frequency GPS
Cellular and satellite
5G capable
S10 chip
Wrist flick gesture
Double tap gesture
On-device Siri with health data access
Precision Finding for iPhone 
Up to 42 hours
Up to 72 hours in Low Power Mode
Fast-charge capable
(0–80% in about 45 minutes; 15 minutes for up to 12 hours)
Specifications
Apple
Apple Watch Ultra
Apple Watch Ultra 3 Black/Black Alpine Loop
Description
49mm titanium case
Always-On Retina display
Up to 3000 nits
Wide-angle OLED
LTPO3
Hypertension notifications
ECG app
High and low heart rate notifications
Irregular rhythm notifications
Low cardio fitness notifications
Blood Oxygen app
Sleep Tracking
Sleep apnea notifications
Sleep score
Vitals app featuring heart rate, respiratory rate, wrist temperature, and sleep duration
Temperature sensing
Cycle Tracking with retrospective ovulation estimates
Emergency SOS
Emergency SOS via satellite
International emergency calling
Fall Detection and Crash Detection
Siren
Water resistant 100m
Swim, snorkel, scuba, high-speed water sports
Depth gauge to 40m
Water temperature sensor
Precision dual-frequency GPS
Cellular and satellite
5G capable
S10 chip
Wrist flick gesture
Double tap gesture
On-device Siri with health data access
Precision Finding for iPhone
Up to 42 hours
Up to 72 hours in Low Power Mode
Fast-charge capable
(0–80% in about 45 minutes; 15 minutes for up to 12 hours)