Languagessimplified chinese english capacity mah70 materialtpu sim card typeno sim card slot connectivitybluetooth30 fitness wellnesscall reminder alarm clock sleep tracker pulsometer sedentary reminder cpunrf51822 ram128mb charging timeh1 waterproof levelipx 1 typesmart bracelet featurespedometers calories burned water resistant water proof anti lost message control information touch screen sports sensorfinger sensor supported operation systemandroid ios scre