Get motivated with the Fitbit Flex Wireless Activity Band. This slim device can be worn all the time and be used to help track your movements. Use it to track the number of steps taken each day as well as the number of calories burned. Set daily goals and then check to see how you are stacking up. The Fitbit Flex band can even be worn at night. It will track your sleep cycle and help you learn how to sleep better. It will silently wake you in the morning when it is time to get up. Access the data compiled by the Fitbit Flex band whenever you want from a computer, tablet or smartphone. It is compatible with both iPhone and Android devices for easy access to information. The band is water resistant so it can be worn outside even if it is raining or snowing. This band is a companion that can stay with you all the time and go with you wherever you go. Fitbit Flex Wireless Activity Sleep Band: Tracks steps, distance, calories burned and active minutes Monitors how long and how well you sleep Wakes you (not your partner) with a silent wake alarm LED lights show how your day is stacking up against your goal Easy-to-wear, slim, comfortable wristband Syncs automatically with select mobile devices and to your computer Accessory bands allow you to personalize your Flex Set goals, view progress and earn badges Share and compete with friends throughout the day Free Apple iPhone and Android app Wear proudly all day and night Log food, weight and more on Fitbit's website or apps Wear in the shower Rechargeable battery Instantly launch your Fitbit app by tapping your device your NFC-enabled Android phone