I think activity trackers are classified slightly different from the GPS watch market you're perceiving Garmin to dominate. DCRainmaker says Garmin's first acti

I think activity trackers are classified slightly different from the GPS watch market you're perceiving Garmin to dominate. DCRainmaker says Garmin's first activity monitor device was first released in early 2014. http://www.dcrainmaker.com/2014/01/vivofit-activity-monitors.html http://www.dcrainmaker.com/2014/01/vivofit-activity-monitors...