Fitbit Charge HR Wireless Activity Wristband Blue White Marble with Charger Fitbit Charge HR wireless activity wristband in a unique blue and white marbled pattern. This fitness tracker monitors heart rate, steps, distance, calories burned, and sleep quality. The set includes a clean replacement pebble and the necessary USB charging cable. Perfect for someone looking for a functional core unit to pair with a new band of their choice. #Athleisure #Minimalist