The FitBit Flex tracks active minutes, calories burned, sleep quantity and quality, distance traveled and steps taken. It includes a silent-wake vibrating alarm and syncs to computers and certain smartphones. It contains a light-emitting diode display, which provides instant feedback to the wearer.
The FitBit Flex uses a rechargeable battery and is water resistant. Interchangeable wrist bands provide additional color choices to the wearer. An included dongle allows wireless syncing to computers, while syncing to smartphones utilizes Bluetooth technology. The FitBit dashboard simplifies the personalization of device setup, goal setting, food logging and exercise tracking. A FitBit profile allows users to connect with friends and family to provide support and motivation.