Discover an activity tracker that's as flexible as you are. The Fitbit Flex 2 tracks your activity 24/7, whether you're walking the dog or sprinting on the treadmill. Ultrathin, with a discreet LED display and waterproof design, this wristband can stay with you wherever you go. It automatically recognizes your activity and even tracks your sleep patterns.
Size: Universal (small and large band included)
Features: Tracks steps, distance, sleep, calories burned, and swimming