Languagesenglish capacity mah100 materialmetal silicone sim card typeno sim card slot connectivityusb bluetooth40 fitness wellnesstimer sleep tracker activity tracker sedentary reminder call reminder alarm clock find my device cpunrf51822 charging timeh2 typesmart bracelet featuresdistance tracking blood pressure measurement pedometers calories burned anti lost camera control touch screen sports modelx9plus sensorheart rate sensor gyro sensor gravity sensor supporte