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Fitness Trackers: Good at Heart Rate, More 'Fiction Than Fact' on Calories

How Reliable Are Smartphones and Wearables for Monitoring Your Heart?

Is Fitbit Study Another Black Mark for Wearables?

NewsHour Twitter Chat: Study Finds Fitness Trackers Fail to Help Weight Loss

Fitbit Will Offer Comparisons to Famous Hiking Trails

Four Leading Fitness Trackers Reviewed

Fitbit Used in ER to Determine Treatment of Irregular Heartbeat

Alexa Voice Software to Offer Fitbit Progress Updates

Wearables Can Be Used to Track User Whereabouts, Researchers Say

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