Operating System WatchOS
Memory Storage Capacity 32 GB
Special Feature Activity Tracker, Heart Rate Monitor, Sleep Monitor, Blood Oxygen
Battery Capacity 308 Amp Hours
Connectivity Technology USB
Wireless Communication Standard Bluetooth, 5 GHz Radio Frequency, 802.11b, 2.4 GHz Radio Frequency
Battery Cell Composition Lithium Ion
GPS Built-in GPS
Shape Square
Screen Size 45 Millimeters