The projected growth in the wearable devices market is 18.4 percent with 274.6 million units expected to be sold in 2016, generating potential revenues worth $28.7 billion (source: Gartner). In 2015, 39.5 million U.S. adults, 18 and over used some form of wearable devices (eMarketer). That growth will continue at a steady pace, with 81.7 ...