Languagessimplified chinese english capacity mah70 materialtpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnessalarm clock find my device sleep tracker pulsometer sedentary reminder call reminder chronograph cpunrf51822 ram128mb charging timeh1 waterproof levelipx 1 typesmart bracelet featureswater resistant water proof anti lost camera control message control information touch screen sports long standby pedometers calories burned heart rate m