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Fig. 2 | BMC Sports Science, Medicine and Rehabilitation

Fig. 2

From: Reliability and validity of ten consumer activity trackers

Fig. 2

Bland-Altman plots of the top three activity trackers in the laboratory condition (Optogait vs. Fitbit Zip, Lumoback, and Withings Pulse, figure a-c) and free-living condition (ActivPal vs. Fitbit Zip, Misfit Shine, and Lumoback, figure d-f). The middle line shows the mean difference between the tracker and the gold standard, and the dashed lines indicate the limits of agreement (±1.96 * SD of the difference scores)

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