The price on the Fitbit Ultra Wireless Activity Tracker in blue or plum drops from $99.95 to $84.95 to $76.46 when you enter code AFPBRAD50 at checkout. That's the best price we found by $21. This device tracks the number of steps you take, calories burned, distance traveled, your sleep habits, and more. The data uploads online so you can track your progress using their free tools. Shipping is free and sales tax is charged in most states.