Smart Watch – 1.65″ touchscreen display – Operating System Android 5.0 or later, iOS 10.0 or later – GPS – Functions: Track 12 different sports: outdoor running, treadmill, walking, outdoor/indoor cycling, elliptical trainer, swimming, mountaineering, trail running, skiing & exercising – Activity tracking with distance, activity times, calories, and steps – Bluetooth Music Control – Sensors: BioTracker PPG Optical Heart rate sensor, 6-axis accelerometer, 3-axis geomagnetic sensor, Barometer, Ambient light sensor – Lithium polymer battery – Battery life 336 h