Fitbit Charge 4 FB417 Activity Tracker GPS + Heart Rate Replacement Pebble Color:Rosewood Premium sound quality by DSEE

Premium sound quality by DSEE Extreme technology

Fits Models: SM-R890

wirelessly connect more Sonos speakers

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Fitbit Charge 4 FB417 Activity Tracker GPS + Heart Rate Replacement Pebble Color:Rosewood Premium sound quality by DSEEFeatures: BUILT IN GPS. During outdoor runs, rides, hikes, and more, use built in GPS to see your pace and distance on Charge 4, then see a map of your workout in the Fitbit app. ACTIVE ZONE MINUTES. Feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise. 24 7 HEART RATE. Use 24 7 heart rate to track resting heart rate, better measure calorie burn, and optimize your