Wednesday, March 19, 2014

How Well Do Fitness Trackers Monitor Heart Rate? - LiveScience.com




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How Well Do Fitness Trackers Monitor Heart Rate? - LiveScience.com




LiveScience.com

How Well Do Fitness Trackers Monitor Heart Rate?
LiveScience.com
An increasing number of fitness trackers that are worn on the wrist claim to monitor your heart rate without the need for a chest strap, but how accurate are they? Fitness trackers measure your activity, such as the distance you walk, the number of ...








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