It measures:
Body Temperature
Blood Pressure
Blood Oxygen Level
Immunity Level
ECG
 
Other features:
Find the phone
24/7 Health Monitoring on Wearfit2 
Smartphone app
Fitness Tracking & Training Mode
SMS, Call Notification
3D Curved Glass Amoled Display
Touch-screen smart controls
Motion screen display
Charging Box for easy charging
IP67 Waterproof & Dust proof