Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS Color:Black activity duration

activity duration

When the camera recognizes a moving object

Curved Adhesive Mount

The AF points are spread across a wide area in the optical viewfinder

With content curated for you

Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS Color:Black activity durationFeatures 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