Wear this stylish Fitbit Flex Wireless Activity and Sleep tracker and motivate yourself to be more active and reach your daily goal–it is a great companion! It tracks steps, distance, and calories burned and show you how you’re stacking up against your daily goals. Activity Tracker Features Tracks steps, distance, calories burned, activity Connectivity: Bluetooth® Low Energy Water Resistant: Yes, Up to 10m Battery life: Up to 5 days Fitbit Service Policy: 30 day refund or exchange on unopened product. After 30 days, warranty and service of your product will be handled solely by Fitbit.