Fitbit Charge 4 Black Advanced Fitness Tracker
Price: [price_with_discount](as of [price_update_date] – Details) [ad_1] FitBit Charge 4 Fitness Tracker; With Fitbit Charge 4, there’s no limit to how far you can go. This sleek, swim-proof 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. …