Languagesenglish capacity mah100 materialsilicone connectivitybluetooth40 fitness wellnesscalendar exercise reminder sedentary reminder find my device sleep tracker activity tracker cpunrf51822 charging timeh1 typesmartwatch featuresmessage control touch screen sports distance tracking long standby pedometers calories burned heart rate monitor anti lost camera control modelyyh3 sensorfinger sensor heart rate sensor gyro sensor proximity sensor gravity sensor supported