Fitbit Charge 2 Heart Rate Monitor Fitness Wristband Tracker -Small Large

100% fully functional, has been tested and cleaned. (1) New Classic Wristband/strap (Small or Large). Small 5.5–7.1 140 mm–180 mm. Large 7.1–8.7

Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Large (US Version), 1 Count Black Large (Pack of 1)

6 Ways Continuous Heart Rate Tracking Gets You Closer to Your Goals

Fitbit Charge 2 Heart Rate + Fitness Wristband - Blue (Large)

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