Romother capacity mah60 sim card typeno sim card slot connectivitybluetooth40 fitness wellnesssleep tracker activity tracker cpunrf51822 ramother charging timeh1 typesmart bracelet featurestouch screen sports exercise record distance tracking pedometers calories burned heart rate monitor camera video app control message control modelid111 sensorfinger sensor heart rate sensor supported operation systemandroid ios screen typedisplay technologyoled packing list