*This item is REFURBISHED. <br />Fitbit Flex Wireless Activity Sleep Band:Tracks steps・ distance・ calories burned and active minutesMonitors how long and how well you sleepWakes you (not your partner) with a silent wake alarmLED lights show how your day is stacking up against your goalEasy-to-wear・ slim・ comfortable wristbandSyncs automatically with select mobile devices and to your computerAccessory bands allow you to personalize your FlexSet goals・ view progress and earn badgesShare and compete with friends throughout the dayFree Apple iPhone and Android appWear proudly all day and nightLog food・ weight and more on Fitbit's website or appsWear in the showerRechargeable batteryInstantly launch your Fitbit app by tapping your device your NFC-enabled Android phoneAvailable in two colors: Black・ Slate or Pink