From: Validating Fitbit Zip for monitoring physical activity of children in school: a cross-sectional study
Fitbit Zip
ActiGraph GT3x
Steps
3069.6 (1978.8)
2605.8 (1652.1)*
% from recommendationsa
25.6
21.7*
MVPA (min)
14.3 (17.0)
15.8 (12.9)*
% from recommendationsb
23.8
26.3*
Sedentary time (min)
160.4 (59.3)
147.4 (56.9)*