Motiv crammed a full fitness tracker into a ring
 

Fitness trackers are a dime a dozen at this point, with Fitbit dominating the market. But as long as wearable gadgets have been in vogue, the concept of a "smart ring" has made the rounds in various forms. Here at CES, it looks like Motiv is the clos...

https://www.engadget.com/2017/01/03/...r-into-a-ring/