Fitbit topped Apple's app chart on Christmas Day
At a glance, Fitbit's (NYSE:FIT) third quarter was outstanding. Revenue soared 168% year over year, non-GAAP gross margin increased sequentially, and the company boosted its outlook for the full year. But a closer look at some key metrics reveals a Garmin's vivosmart HR and Fitbit's Charge HR activity trackers both monitor heart rates, and both … Read more