Languagessimplified chinese english romother capacity mah100 materialtpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnesssleep tracker activity tracker cpunrf51822 ramother typesmart bracelet featuressports exercise record distance tracking long standby blood pressure measurement pedometers calories burned heart rate monitor information touch screen modelhb07 sensorfinger sensor heart rate sensor light sensor supported operation systemandroid