SunMall H8 Smart Band Wristband Bluetooth 4.0 Waterproof Touch Screen Fitness Tracker Health Wristband Sleep Monitor Smart Watch (White) Designed for Healthy Life: Passometer,Sleep Tracker,Message Reminder,Call Reminder,Remote Control,Altitude Meter,Long Standby Time. Intelligent Notification: When There's Incoming Calls or Message, It Vibrates and Displays Caller ID, Message Content User Friendly Design: Host With USB Port, Easy to Get Charged in PC or Any USB Charger 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. Easy To Use: The tracker is very easy to use. You simply tap on the screen and use finger gestures like swiping, double tapping, etc.