Fitbit Flex 2: First Swim-Proof Fitness Tracker by Fitbit

Fitbit Flex 2 Fitbit unveiled new activity tracker wristbands called Charge 2 and Flex 2. The Flex 2 is a simple and slim activity tracker and is the first swim-proof wristband by the company. It is waterproof up to 50 meters and can automatically recognize when you are swimming. Let’s have a close look at