and predicted sales.
201 E
2017
201B
2021
48 .2(
~martwatch
80 .9!
34.BC
41 .50
Head-mounteddisplay
16.09
22 .01
28.2E
67 .1
Body-worncamera
0 .17
1.05
1.5£
5 .62
Bluetoothheadset
128.SC
150 .00
168.0C
206 .0C
44.10
~ ristband
63 .8!
34.97
48.8'1
~ports watch
21.23
21 .43
21.S::
22 .31
!Otherfitnessmonitor
55 .4E
55 .7
56 .23
58 .7,
!Total
310.37
347.5:l
504 .6!
265 .Bll
Wearable Devices Worldwide (millions of units) Wearable Devices Actual and Forecast (Source: Gartner Group, August 2017)
Notice the strong growth predicted by 2021. Total wearable devices are projected to increase by about 45% from 2018 to 2021. Collaborative
Information Systems for Business and Beyond (2019) pg. 289
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