Smartwatch Features: If this special feature is not given in your smart watch, then the health related features will stop working, in which case its role is very important.
what is the function of this light
You must have noticed that whenever you use any health or fitness related feature, a bright green light starts blinking on the back side of the smart watch. Most of the people would consider this light as just a design element but its purpose is different. This bright light activates all the health and fitness related features and helps you to monitor your health. If this Hari Roshni is not there then you will not get accurate information about your health.
In fact, this bright green light that links enters inside your skin through your wrist and then goes to the body blood. After that this bright green light comes back on. This process is repeated again and again until the correct reading is obtained. The more accurate this light works, the more accurate details the smart watch gives you. If this bright green light is not there then your smartwatch will be useless.