If you’ve been in the market for an activity tracker, now might be the right time to take the plunge and make a purchase. For a limited time, a selection of Fitbits are on sale at Macy’s. Here are some of the deals being offered: Fitbit Charge HR on sale for $129.99 (regularly $149.99) Fitbit Charge on sale for $99.99 (regularly $129.99) Fitbit Flex on sale for $79.99 (regularly $99.99) Fitbit Zip on sale for $49.99 (regularly $59.95) Not sure which Fitbit is right for you?