Fitbit Product Experts Alumni are retired members of the Fitbit Product Expert Program. Learn more
@Indie1 When you do a factory reset the app loses its connection to that specific unit. You have to go to the app and remove the unit from your devices and then add it back as if it were a new fitbit device and follow the same steps as when the unit was new.
Warren | Cincinnati, OH
Versa Lite, Ionic, Charge3, Inspire HR, Blaze(retired), Alta( retired),- Pixel 3
Take a look at the Fitbit help site for further assistance and information.