This paper studies frequent immobility (more than 3 days a week) as recorded by last French Travel Surveys. A previous analysis, based on 2007-2008 French Travel Survey, limited itself to adults on working days (Motte-Baumvol and Bonin, 2018). Here, we investigate frequent immobility (4 to 7 episodes a week, Monday to Sunday), with social equity issues in mind. After describing the variable (number of immobile days within a week), and how it evolved between last two French Travel Surveys, we identify factors that explain frequent immobility with a logit model. The last part of the paper focuses on travel behaviors on a mobile day to approach compensatory effect.