Have you decided to make 2015 the year that you train for that 5K? Are you an avid cyclist and finally want to add an Activity Tracker to your arsenal of cycle computers and pedal sensors? Or are you just an average person who wants to get a bit more serious about your fitness program? In this comparative review I’ll look deeper into the pros/cons of three different devices for a wide spectrum of potential users. Time for another epic BATTLE, and in this go-round we’re testing the Fitbit Surge versus Garmin Vìvoactive versus Polar M400.