Waterproof grade IP68

Screen size 1.45"

Screen type TFT

Screen cover 2.5D glass cover

Middle frame zinc alloy, matte, electroplating

Bottom shell PC+PBT black material

Button aluminum alloy (surface oxidation, fine sandblasting)

Strap Solid silicone (black, fine frosted grain, hardness 70)

Buckle Solid silicone (black, fine frosted grain, hardness 70)

Charging contacts Palladium-plated copper

Tongue buckle stainless steel galvanized black

MCU 8763EWE

BT BT3.0

G SENSOR STK8321

PPG heart rate sensor VP60AD

Trumpet 1609

Microphone 4015

Touch chip Haili Chuang 816D

Screen full screen touch

Screen resolution 360*360

Flash 128Mb Nor Flash

Bluetooth BT3.0+BLE5.2

Working voltage 3.8V

Maximum power/

Battery capacity 300mAh

Battery life about 8 days

BT battery life 5~6 days (BT calling)

Battery Type Lithium Polymer

Charging method Magnetic contact charging

Charging time 2.5h to 3h

iOSIOS 12.0+

Android Android6.0+