Languageschinese simplified chinese english romother capacity mah100 materialsilicone sim card typeno sim card slot connectivitybluetooth40 fitness wellnesstimer sleep tracker activity tracker pulsometer chronograph community share alarm clock find my device stopwatch cpunrf51822 ramother charging timeh1 waterproof levelipx 7 typesmart bracelet featuresvoice control sports multifunction exercise record long standby pedometers calories burned anti lost heart rate mo