Fitness has never been more fashionable than with Fitbit Flex. The sleek activity and sleep wristband helps keep track of your fitness progress while making sure you're getting the rest you need. Its slim, removable tracker can be paired with Flex accessories from Fitbit and Tory Burch (sold separately) to match every activity and occasion in your active lifestyle, seamlessly transitioning from office to gym to evening events. Keep your motivation to stay active running high by recording the amount of activity in your days, tracking the number of steps you take plus the additional calories you burn by choosing to take the stairs or the long way back to work. Its LEDs keep you motivated by lighting up with every 20% that you get closer to achieving your daily fitness goals. To help keep your body charged and ready to go, Fitbit Flex also allows you to automatically monitor your sleep and wakes you with a silent, vibrating alarm. Syncing Fitbit Flex with your computer or smartphone makes it easy to track trends through detailed charts and graphs, allowing you to note progress and make more effective goals. Its battery goes strong for up to 5 days without needing to recharge.