Compare Apple Watch Models
Apple Watch Series 8
Apple Watch Ultra
Choose models to compare.
Images
GPS + Cellular
GPS + Cellular
GPS + Cellular
Finish
Not Applicable
Titanium
Aluminum
Aluminum
Not Applicable
Quick look
45mm or 41mm case size
49mm case size
Flat sapphire front crystal with titanium edge protection
Case Size- 2
Certified IP6X dust-resistant◊Refer to legal disclaimers
Certified IP6X dust-resistant◊Refer to legal disclaimers
Tested to MIL-STD 810H◊Refer to legal disclaimers
Customizable Action Button
Display
Always-On Retina display
Up to 1000 nits brightness
Nearly 20% more screen area than Apple Watch SE
Always-On Retina display
Up to 2000 nits brightness
Nearly 27% more screen area than Apple Watch SE
Water-resistant
Water-resistant◊Refer to legal disclaimers
50m
Swimproof
Water-resistant◊Refer to legal disclaimers
100m
Swimproof and recreational dive ready to 40m
Water-resistant- 2
Not Applicable
EN13319 certification
Depth gauge with water temperature sensor
Oceanic+ app for use as a dive computer
Blood oxygen
Blood Oxygen app◊Refer to legal disclaimers
ECG app◊Refer to legal disclaimers
High and low heart rate notifications
Irregular rhythm notification◊Refer to legal disclaimers
Blood Oxygen app◊Refer to legal disclaimers
ECG app◊Refer to legal disclaimers
High and low heart rate notifications
Irregular rhythm notification◊Refer to legal disclaimers
Temperature sensing
Temperature Sensing◊Refer to legal disclaimers
Cycle tracking with retrospective ovulation estimates◊Refer to legal disclaimers
Temperature Sensing◊Refer to legal disclaimers
Cycle tracking with retrospective ovulation estimates◊Refer to legal disclaimers
Emergency SOS
Emergency SOS◊Refer to legal disclaimers
International emergency calling◊Refer to legal disclaimers
Fall Detection
Crash Detection
High-g accelerometer
Gyroscope
Compass Backtrack
Not Applicable
Emergency SOS◊Refer to legal disclaimers
International emergency calling◊Refer to legal disclaimers
Fall Detection
Crash Detection
High-g accelerometer
Gyroscope
Compass Backtrack
86-decibel Siren to attract attention
Audible up to 180 metres
Compass
Redesigned Compass app with multiple views
Compass Waypoints and Backtrack
GPS
Always-on altimeter
Redesigned Compass app with multiple views
Compass Waypoints and Backtrack
Precision dual-frequency GPS
Always-on altimeter
Available Cellular Connectivity
Available cellular connectivity◊Refer to legal disclaimers
Supports Family Setup◊Refer to legal disclaimers (GPS + Cellular
models)
Connect family members who don’t have an iPhone
Cellular connectivity◊Refer to legal disclaimers
Supports Family Setup◊Refer to legal disclaimers (GPS + Cellular model)
Connect family members who don’t have an iPhone
Battery
Up to 18 hours◊Refer to legal disclaimers
Fast charge
Up to 18 hours◊Refer to legal disclaimers
Fast charge