Which fitness trackers are most accurate?

Some fitness trackers are more accurate than others
If you are contemplating gifting a fitness tracker to a friend of family member this holiday season, you may be wondering which devices are the most accurate.

Researchers, whose study was published in Medicine and Science in Sports and Exercise have the answer. They studied the accuracy of the most popular wrist devices now on the market: the FitBit Flex, Nike+ Fuel Band SE, Jawbone UP24, Polar Loop, and MisFit Shine.

Which came out on top? With an error rate of below 20%, the FitBit Flex, Jawbone UP 24 and Nike+ Fuel Band SE were the winners. All three did a good job of monitoring cardiovascular activity and caloric expenditure during sedentary activity. The researchers cautioned, however, that none of the devices were particularly good at monitoring strength training activity. Let's hope that gets worked out for the next generation of trackers.

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