The personal IoT is dominated by the use of wearables, technological devices designed to be worn on body, they are used in tandem with an app on a smartphone. The first wearable available was the Pulsar Calculator watch made by Time Computer Inc, USA (at that time known as Hamilton Watch Company). It was a standalone device not connected to the internet. Soon, with the growth of the internet, wearables that can connect to the internet became a fad. The wearables market is expected to jump from an estimate of 325 million in 2016 to over 830 million by 2020:
This graph shows the number of wearables worldwide from 2016–2021 (data ...
