1：880mah large capacity battery with 200 days long standby.
2：Professional water resistance, it can be worn for swimming as it supports a depth of 30 metres underwater.
3：Bluetooth 5.1 chip for fast link calls without interruptions.
4：Professional grade heart rate chip，True heart rate and true blood oxygen monitoring，Heart rate monitoring is also possible with black skin.
5：Professional exercise data monitoring with multiple exercise modes to choose from, giving you accurate data reference.
6：NFC

Screen

2.0" full screen with narrow bezel, resolution 420*490, giving you a bigger and clearer experience with colourful, stylish and cool operation and more convenient data viewing.