4 best new features in Fitbit Charge 2 and Flex 2

I came away from a recent product briefing at Fitbit's San Francisco headquarters thinking its new Charge 2 and Flex 2 have the potential to be genuine blockbusters — blockbusters on the scale of its recent Blaze and Alta wearables, which accounted for 54 percent of the company's second quarter 2016 revenue. Both Charge 2 and Flex 2 add welcome new features, refinements, and design choices to Fitbit's mid-range product line.To read this article in full or to leave a comment, ple