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Is your Fitbit really accurate when measuring heart rate?

Our Fitbits may not be as accurate when it comes to heart rate tracking as we like to think they are, if results of a new study filed in an ongoing complaint against Fitbit are to be believed. To recall, the class action lawsuit was filed earlier this year by a group of three Fitbit customers. The company’s heart-monitoring technology was called “wildly inaccurate” and Fitbit was accused of false advertising. The lawsuit...