M4 Bluetooth Waterproof Smart Band with Heart Rate Monitor And Blood Pressure

M4 Bluetooth Waterproof Smart Band has Heart Rate Monitor And Blood Pressure, Activity Records, Sleep Monitor, Calore Burned, Rejected Calling, Alarm, Message, Usb Charging Supports on it.

This smart band has features such as calling function which enables you receive a call and disconnect it.

From M4 smart band you can also send and receive messages through it but only supported to android Phones for which you need to download the app.