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IoT devices are basically smart devices which have support for internet connectivity and are able to interact with the other devices over the internet and grant remote access to a user for managing the device as per their need.
There are several top devices in the market. Smart Mobiles, smart refrigerators, smart watches, smart fire alarm, smart door lock, smart bicycle, medical sensors, fitness trackers, smart security system etc., are few examples of IoT products.
IoT device market is increasing drastically, hence it is assumed to have more than 20 billion IoT products in the market up and in running state by the year 2021.
The technologies used in these devices are low energy wireless and Bluetooth, NFC, LTE, ZigBee, wireless protocols etc.
IoT product/devices are basically physical devices integrated with software and can connect with each other over the internet to exchange information, they help the user for more simple and direct integration of the physical world.