The amount and variety of data that IoT items can analyse and retain is now thought to be almost limitless. Since the core of IoT is communication between network devices, any data that can be published on the cloud may be exchanged from one IoT device to another. The environment and the sensor settings determine the data an IoT item may collect and how it will react. While a thermometer's readout is straightforward for conveying meteorological data, a clinical sensor is required for conveying data on vital signs including core body temperature, heart rate, and blood pressure.