Languagessimplified chinese english capacity mah50 materialsilicone connectionbluetooth30 bluetooth20 bluetooth40 bluetooth41 bluetooth 42 typesmart bracelet featuressports health care multifunction long standby pedometers calories burned alarm clock message control sleep tracker creative water resistant water proof information wearable modellxw 332 sensorfinger sensor heart rate sensor accelerometer proximity sensor gravity sensor supported operation systemios android