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Fitbit heart rate tracking technology described as 'wildly inaccurate' by class-action lawsuit - Mirror Online
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Fitbit Inspire HR Heart Rate and Fitness Tracker, One Size (S and L Bands Included), 1 Count : Sports & Outdoors
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Fitbit Luxe Fitness and Wellness Tracker with Stress Management, Sleep Tracking and 24/7 Heart Rate, Black/Graphite, One Size (S & L Bands Included) : Sports & Outdoors
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