January 2019
Intermediate to advanced
390 pages
9h 16m
English
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 ...
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