General
Watch Operating System	watchOS 2
Compatible Operating System	iOS 8.2 and later
Chipset	Not Specified By Manufacturer
RAM	Not Specified By Manufacturer
Storage Capacity	8 GB
Sensors	Accelerometer, Gyroscope, Heart Rate, Light Sensor
Activity Tracker	Yes
Microphone	Yes
Built-in Speaker	Yes
Vibration	Yes
Connectivity
Connectivity	Bluetooth, Wi-Fi, NFC
Bluetooth Protocol	Bluetooth LE
Bluetooth Version	4.0
Wi-Fi Standard	802.11b/g/n
GPS	No
Display
Dial Shape	Rectangle
Dial Size	1.3" / 33.0 mm
Dial Type	Digital
Display Technology	OLED
Display Resolution	272 x 340 pixels
Pixel Density	290 ppi
Battery
Battery Type	Not Specified By Manufacturer
Battery Capacity	Not Specified By Manufacturer
Battery Life	Normal Use: Up to 18 hours
Music: Up to 6.5 hours
Standby: Up to 48 hours
Power Saver: Up to 72 hours
Battery Charging Time	2.5 hours
Charging Method	Magnetic Connector
Physical
Watch Crystal Material	Aluminosilicate Glass
Case Materials	Aluminum