For EU and UK users in particular, transferring health data to the US may not carry the same legal protections as data kept within the European Economic Area, depending on the safeguards Fitbit uses.
Fitbit collects sensitive health and biometric data β including heart rate, sleep patterns, menstrual cycles, weight, and GPS location β and may share it with Google, third-party service providers, and health platforms. Users who link a Google Account are subject to Google's broader privacy practices, significantly expanding how their data may be used. You can review and delete your Fitbit data or request a data export through the Fitbit app under Account Settings.