Internet of things IoT is a system of internet-connected devices which collect and transfer data over a wireless network without human intervention. Smartphones, wearable devices like health band or smart watch are examples of IoT. IoT works on four component sensors, network communication, analytics cloud and application. Non adherence to treatment is a major reason for poor control of diseases like hypertension, diabetes which ultimately leads to complications. Medicine reminder apps and smart devices can be very helpful to overcome this problem. Smart watches and devices have applications which can monitor persons heart rate, blood oxygen, body temperature, blood pressure, ECG etc. Readings of these parameters can be shared with a doctor who is connected through internet. In critical situation immediate intervention can be done by the physician by advising appropriate medicine. Thus use of IoT is crucial in monitoring of health of the individual. In Covid-19 pandemic patients are being monitored and treated form distance with the help of internet connected smart devices. Shortage of skilled human resources in health care sector can be addressed by using this technology. Its will be a boon for health services in public sector. Considering the economical turnover of IoT in health care sector globally, adopting this technology in India is need of hour.