Benice Touch Screen Smart Watch Fitness Tracker Bracelet Heart Rate Monitor Bluetooth 4.0 Pedometer Tracking Calorie Sleep Monitor Call Reminder Remote Capture Wristband for Sports Fitness Main Functions: Heart Rate Monitor, Steps Counting, Find Your Phone, Camera Remote Control, Sedentary Reminder, SMS Reminding, Call Reminder, Incoming Calls Show, Calories Burned Measuring, Sleep Management HEART RATE MONITORING: Using a medical grade testing algorithm for the resting heart rate, the device monitors your heart time in real time, and constantly traces any changes in your heart rate FIT FOR: iphone 4S or above (iphone 4S, iphone 5, iphone 5S, iphone 5C, iTouch5, ipad3, ipad4, ipad air, ipad mini etc IOS 7.0 or above system) Android 4.3 or above, Bluetooth 4.0. Not Fit For: Lenovo, TCL, Asus phone COMFORTABLE WEAR: The device is very comfortable to wear as it is made almost entirely out of silicone and is very smooth.Attach it to your wrist is very easy as everything just sort of snaps into place thanks to the stretchy silicone material MAGIC NFC: The NFC chip integrated in the smart bracelet allows both information reading and recording, enabling features such as electronic name card, identification, attendance card and other customized functions