SAN FRANCISCO–(BUSINESS WIRE)–Fitbit (NYSE:FIT) today announced that Fitbit Premium, its paid membership service that gives you guidance to help you move more, manage stress, sleep better and eat well, has reached more than 500,000 paid subscribers in less than a year since launch. For those looking for extra support, Fitbit Premium provides even greater value to what it means to be “on Fitbit” by delivering more in-depth data, personalized and actionable insights, hundreds of workouts, motiv