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RIP Charge 2 (2017 -2021) - after a short bike ride and now no heart rate tracking 3 weeks later. Note: Photo is not flipped. : r/fitbit
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Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Large (US Version), 1 Count Black Large (Pack of 1)
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HR data (Fitbit Charge 2 vs. ECG). Bland-Altman Plot indicating mean... | Download Scientific Diagram
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