Languagesenglish capacity mah80 materialsilicone sim card typeno sim card slot connectivitybluetooth40 fitness wellnessalarm clock find my device sleep tracker activity tracker sedentary reminder charging timeh2 typesmart bracelet featuresdistance tracking long standby blood pressure measurement pedometers calories burned heart rate monitor water resistant water proof touch screen sports multifunction exercise record sensorfinger sensor heart rate sensor gravity senso