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Table 3 Intraclass Correlation Coefficients between the activity trackers and gold standards in the laboratory and free–living study

From: Reliability and validity of ten consumer activity trackers

  Laboratory study (N = 33) (Optogait) 95 % confidence interval Free–living study (N = 56) (ActivPAL) 95 % confidence interval
ActivPAL 1 0.94 – 1   
Lumoback 0.99 ** 0.98 – 0.99 0.99 ** 0.98 – 0.99
Fitbit Flex 0.22 * −0.08 – 0.5 0.96 ** 0.94 – 0.98
Jawbone UP 0.98 ** .095 – 0.99 0.94 ** 0.90 – 0.97
Nike+ Fuelband 0.12 −0.1 – 0.37 0.83 ** 0.37 – 0.94
Misfit Shine 0.97 ** 0.93 – 0.98 0.99 ** 0.98 – 0.99
Withings Pulse 0.99 ** 0.95 – 0.97 0.96 ** 0.91 – 0.98
Fitbit Zip 0.99 ** 0.96 – 0.99 1 ** 0.99 – 1
Omron 0.59 ** 0.27 – 0.78 0.98 ** 0.96 – 0.99
Digiwalker 0.65 ** 0.39 – 0.81 0.96 ** 0.93 – 0.98
Moves app −0.13 −0.32 – 0.15 0.80 ** 0.05 – 0.99
  1. *P<0.05 **P<0.01