Providing a fashionable design & an excellent, optimal fit due to comfortable rubber fabric, the Fitbit FLEX Activity & Sleep Wristband is a great partner throughout sports activities, helping you to achieve established goals. The device during daytime tracks steps, distance, as well as the amount of calories burnt, ensuring precise, real-time data about your activities by storing it in Fitbit dashboard accessible through a variety of devices. At night, the tracker monitors your sleep patterns & the quality of your rest, therefore offering a great way to improve the regeneration process of your body, plus in the morning it will gently wake you up. The device measures the process of goal completion with five LED indicator lights, where each represents 20% of your progress. Furthermore, it is lightweight, connects wirelessly to a handy sync dongle & allows for Bluetooth connection when the battery is low.