A new study of wearable uptake in the US shows that 56% of its participants own such a device. Furthermore, another 13% of this group reported considering the purchase of one by 2020. This study's publication also contained some recommendation for Google's next moves in this game following its Fitbit acquisition.
https://www.notebookcheck.net/Up-to-56-of-all-US-consumers-may-own-a-wearable-at-this-point.442789.0.html