Languagessimplified chinese english capacity mah150 materialtpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnesstimer sleep tracker activity tracker cpunrf51822 ramother charging timeh2 waterproof levelipx 7 typesmart bracelet featuresdistance tracking pedometers calories burned heart rate monitor water resistant water proof information touch screen sports modelh5 sensorfinger sensor heart rate sensor supported operation systemandroid io