The Fitbit Charge 3 in Blue Grey/Rose Gold is a touchscreen fitness activity tracker made with durable Rose Gold aluminium materials and comes with small and large sizes. Improve your lifestyle with Fitbit Charge 3, the smart health and fitness band bursting with many innovative features to better your understanding of your own health and body. This wireless health band uses 24/7 heart rate and personalised data to keep you updated with real-time notifications to reveal what’s below the surface