M4 Smart watches has a lot of functions
-It Helps Checks your Blood pressure,Blood oxygen and Heart rate
-It shows you the amount of steps you make in a day,The kilometre you cover in a day
-it shows you the amount of calories you burn in a day
-it can be used for sports also like jogging,Running,sit-ups
-it uses Bluetooth and a Fit pro Application to connect to your phone
-When it is connected to your phone it vibrates and shows you every notifications you get on your phone
Comes in different colours… Black, red, orange, light green , purple