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AHA: Fitbit shows it can track down atrial fibrillation in 450,000-strong heart study | Fierce Biotech
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How in seven hells is it possible for my Fitbit to be this inaccurate with my heart rate? : r/fitbit
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Amazon.com: Fitbit Versa 4 Fitness Smartwatch with Daily Readiness, GPS, 24/7 Heart Rate, 40+ Exercise Modes, Sleep Tracking and more, Pink Sand/Copper Rose, One Size (S & L Bands Included)
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