F21 heartrate,bluetooth Call,full Touch Screen Smart Band (blue)

bluetooth 230mah android android 4.4 Apple IOS Android battery Bluetooth type bluetooth 4 heartrate,bluetooth Call,full Touch ios ios 9.0 ips IPS color screen polymer battery Bluetooth

Call,full Touch Screen Fitness Tracker,Heart Rate full touch Battery Heart rate measurement,blood MAH lithium polymer mobile phone system monitoring Health monitoring Personalized alarm reminder,sedentary screen,with heart rate screen resolution Button Screen Smart Band touch Battery type touch screen,with heart Touch Screen Smart wear Mobile phone