Languagesrussian spanish german french english indonesian polish arabic portuguese japanese capacity mah450 materialsilicone connectivitybluetooth40 fitness wellnesssleep tracker activity tracker exercise reminder sedentary reminder alarm clock find my device ram64mb charging timeh15 typesmart bracelet featureslong standby pedometers calories burned heart rate monitor anti lost message control touch screen sports distance tracking modelyyu9 sensorfinger sensor gyro se