Wearable devices that monitor physical well-being and fitness are incredibly popular. The number sold is expected to increase from 17.7 million in 2014 to more than 40 million this year.
Personally, I use the Jawbone UP24 and have found it very useful for keeping track of my daily steps and sleep patterns. Most of these devices come set with a default goal of 10,000 steps a day, which is a number commonly associated with a basic or moderate level of fitness.
