Macy’s  has the Fitbit Charge 4 Fitness and Activity Tracker for only $99.95 Shipped! (Reg. $150) With Fitbit Charge 4, there’s no limit to how far you can go. This sleek, swimproof tracker is packed with features that help you know your workouts and your body better—like built-in GPS, Active Zone Minutes, a new exercise mode and sleep tracking.