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The IoT sensors and wearables are used vastly in the world today for various healthcare applications and services. IoT devices minimize the overall cost and save the lives of patients. IoT devices can be used to monitor real-time healthcare of patients, track patient activities, and collect patients’ data to provide an effective and mature solution [2]. The communication and interaction between patient and the healthcare provider becomes easier. In real-time monitoring of a patient, the wearable and sensor acquire data and sends it to the healthcare providers or doctors for monitoring health, which leads to the improvement of the treatment process [33]. IoT devices are connected with smart-phones for self-monitoring of health, and also support chronic diseases management, track patient, staff and equipment, and can be used to monitor aged patients [25]. Some of the challenges in IoT devices are, IoT devices are used in telehealth and telemedicine services. For example, the wireless glucometer, which is an IoT device, collects data from the patient and monitors the level of glucose on a real time-basis and sends notification to the patient’s mobile when there is a fall in the glucose level, indicating the need to take insulin. The advantages of IoT devices are monitoring remote patients, preventing unwanted hospitalization, minimizing cost, faster response time during an emergency, and effective treatment.