Fitbit Charge 4 Health and Fitness Tracker GPS Heart Rate Monitor

Get a better understanding of your effort during outdoor workouts with a map in the Fitbit app which shows when and how long you were in each heart rate zone. 24/7 Heart Rate. Heart Rate Zones. See which heart rate zone you’re in to gauge if you’re working hard enough to reach your goals.

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Get a better understanding of your effort during outdoor workouts with a map in the Fitbit app which shows when and how long you were in each heart

Fitbit Charge 4 Health and Fitness Tracker GPS Heart Rate Monitor 100% Original

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Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS

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