Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS Color:Black 3 Inches Product Dimensions ‎25

3 Inches Product Dimensions ‎25

The glossy and skin-friendly ceramic back ensures a comfortable wearing

Exynos 9810 or above (Samsung S9

With content curated for you

Apple designed driver delivers high-fidelity playback with ultra-low distortion across the entire audible range

Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS Color:Black 3 Inches Product Dimensions ‎25Features Active Zone Minutes alert you when you're in your personalised Fat Burn, Cardio or Peak heart rate zones After outdoor workouts, see a workout intensity map in the app that shows your heart rate changes along your route Use built in GPS to see your pace and distance on screen during outdoor runs, cycles, hikes and more Track sleep stages & review your in app Sleep Score for an easy way to see how well you slept Multi day battery lasts up to 7