This is a donated item which appears to be unused.  The box was opened to ensure it  could charge and was working and for photos.  

ECG/Oxygen/Blood Pressure/Step Counter wrist device.  It includes a small tube of ECG gel.  The wrist band is navy blue.

Per the box, it has the following features:

ECG Monitoring
Heart Rate Monitoring
Blood Pressure Test
Blood Oxygen Monitor
Color Display
Sport Mode
IP67 Waterproof
USB Direct Charge

The item charges by removing the shorter side of the wrist band and plugging the unit into a USB port.