The Fitbit Flex is the company’s third product. The Flex is a water-resistant fitness tracker that is intended to compete against Jawbone Up. The Flex counts calories, how many steps you have taken, and the distance that has been covered. Data collected from this website is sent to a personalized website through Bluetooth. You can use Flex to record food intake and track sleep quality. Interestingly, the Flex does not have any buttons so you will need to use the app or website. The Flex can last 5-7 days on a single charge. The Flex costs $100 and is up for pre-order today. The shipments will start this spring.