Band material

Thermal plastic elastomer silicone vulcanite (TPSV)

Display size

1.26 x 0.50 in (32 x 12.8 mm)

Display type

AMOLED

Resolution

320 x 128 pixels

Battery life

48 hours of normal use; advanced functionality like GPS use will impact battery performance

Average charge time

Full charge in less than 1.5 hours

Battery type

Li-Polymer

Operating temperature ranges

14° to 104°F (-10° to 40°C)

Maximum operating altitude

-300m to +4877m

Sensors

Optical heart rate sensor

3-axis accelerometer/gyro

Gyrometer

GPS

Ambient light sensor

Skin temperature sensor

UV sensor

Capacitive sensor

Galvanic skin response

Microphone

Barometer

Additional technology

Haptic vibration motor

Connectivity

Bluetooth 4.0 (Low Energy)

Supported mobile devices 

Windows Phone 8.1 update or later, iPhone: 5, 5C, 5S, 6, 6 Plus, iOS 8.1.2, and Android 4.4 or later phones with Bluetooth

Charge cable connector

Custom charge cable