NikeFuel, Jawbone, FitBit: How accurate is your fitness tracker?

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A new study shows some fitness trackers are more accurate than others.

Researchers at Iowa State University compared eight activity monitors to see which ones were most accurate at measuring burned calories.

They say most performed reasonably well but some were definitely more accurate than others.

At the top of the list? The BodyMedia Fit, followed by the Fitbit Zip and Fitbit One.

Here’s the full list: (ranked by error rating)

  1. BodyMedia FIT: 9.3%
  2. Fitbit Zip: 10.1%
  3. Fitbit One: 10.4 %
  4. Jawbone Up: 12.2 %
  5. ActiGraph: 12.6 %
  6. Directlife: 12.8 %
  7. Nike FuelBand: 13%
  8. Basis Band: 23.5%

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