From: Reliability and validity of ten consumer activity trackers
Laboratory Condition 1 | Free-living condition 2 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
N | Mean difference (SD) a | MAPE b | t-value/Z-value c | P-value | N | Mean difference a | MAPE b | Z-value c | P-Value | |
ActivPAL | 25 | 9 (6) | 0.3 | 7.19 | 0.000 * | 55 | ||||
Lumoback | 32 | 8 (20) | 0.2 | 2.24 | 0.033 * | 51 | 17 | 0.4 | −0.97 | 0.332 |
Fitbit Flex | 33 | 188 (219) | 5.7 | 4.93 | 0.000 * | 54 | −150 | 3.7 | −2.23 | 0.026 * |
Jawbone UP | 32 | 34 (123) | 1.0 | 1.60 | 0.119 | 53 | −58 | 1.4 | −0.24 | 0.851 |
Nike+ Fuelband | 33 | 598 (618) | 18.0 | −4.36 | 0.000 * | 20 | 977 | 24 | −3.55 | 0.000 * |
Misfit Shine | 33 | −6 (43) | 0.2 | −0.80 | 0.430 | 55 | −43 | 1.1 | −0.36 | 0.719 |
Withings Pulse | 32 | 15 (23) | 0.5 | 3.70 | 0.001 * | 51 | 323 | 7.9 | −5.24 | 0.000 * |
Fitbit Zip | 32 | 11 (12) | 0.3 | 5.44 | 0.000 * | 55 | −49 | 1.2 | −2.66 | 0.008 * |
Omron | 32 | −82 (157) | 2.5 | −2.96 | 0.006 * | 55 | 17 | 0.4 | −0.71 | 0.479 |
Digiwalker | 32 | 38 (145) | 1.2 | 1.46 | 0.153 | 55 | 240 | 5.9 | −2.04 | 0.041 * |
Moves app | 33 | −319 (366) | 9.6 | −4.36 | 0.000 * | 11 | 1529 | 37.6 | −2.85 | 0.004 * |