Screen Size
49 millimeters
Touch Screen
Yes
Operating System Compatibility
Apple iOS
Operating System
watchOS
App Compatible
Yes
Carrier
Unlocked
Internal Memory Capacity
64 gigabytes
Global Positioning
GPS
Usage Time
36 hours
Metrics Measured
Blood oxygen, Electrocardiography (ECG), Hours slept, Resting heart rate, Target heart rate, Skin temperature
Water Resistant
Yes
Maximum Depth of Water Resistance
328.08 feet
Series
Ultra