Battery capacity:70mAh

Standby time:20 days

Battery type: Lithium polymer

Input current: 45 mA (typ) 65mA (max)

0.42" OLED display

Bluetooth 4.0 BLE

Power-efficient accelerometer Photoelectric heart rate sensor

Total length: 235 mm

Adjustable length: 155-210 mm

Material: Thermoplastic elastomer, aluminum alloy

Phone unlocking

Any device running Android 5.0 and above with Bluetooth 4.0