Languagessimplified chinese english capacity mah90 mah materialtpu connectionbluetooth40 talk timeh10 days typesmart bracelet featuressleep tracker wearable water resistant water proof sports health care exercise record distance tracking long standby pedometers calories burned creative find my device information heart rate monitor touch screen sensorfinger sensor heart rate sensor supported operation systemandroid ios screen typedisplay technologyoled stand by timeh