* 24/7heart rate tracking.
* Batterylife up to 7 days.
* Swimproof, Water-resistant up to 50 meters.
*Multi-Sports tracking and Connected GPS.
* All-dayactivity tracking: FitbitCharge 3 tracks your all-day activity.
*Intuitive touch-screen display.
*Goal-based exercise modes.
*Swimproof.
*Wireless synchronization.
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