Fitbit today announced the global availability of both the Charge HR and the Surge fitness bands. Fitbit first revealed the fitness bands back in October with an 'early 2015' ship date. The Fitbit Charge HR features continuous wrist-based heart rate tracking, a bright OLED screen, an exercise mode, Caller ID, automatic sleep detection, a water resistant design with 5 days of … [Read more...] about Fitbit Announces Availability of Charge HR and Surge Fitness Bands