Meet the Fitbit Flex 2: a slim, swim-proof fitness wristband with a removable tracker that fits into bands, bracelets, and pendants to track your daily activity. Flex 2 can be used in the shower, pool, or ocean. It uses color-coded LED lights to show activity progress. The battery life lasts up to 5 days.
The device is water resistant to 5 ATMs. It can track steps, distance, calories burned, and active minutes. It supports walks, runs, bike rides, elliptical, sports, aerobic workouts, and swims.