Model # FB161ALSR Meet the all-new Fitbit Flex 2-a slim, swim-proof fitness wristband that's ready to go wherever life takes you. The ultra-thin, removable tracker hides in bands, bangles and pendants, so you can wear it in a way that's all your own. Automatic all-day activity and sleep tracking show you how your entire day adds up, and SmartTrackautomatic exercise recognition records your exercises for you. The discreet progress display uses color-coded LED lights to keep you connected to calls, texts and Reminders to Move. Plus you don't have to worry about getting it wet-whether you're swimming in the pool or running in the rain. It's the next generation model of our most iconic tracker. No fuss, all fun, and fit for every you. Transform your Fitbit Flex 2 in endless ways Genuine Fitbit accessories with premium materials and finishes Fine jewelry pieces smart enough for work and stylish enough for a wedding