To be very clear. Fitbit Connect does not work properly with Catalina. It only works immediately after a restart and then the connection is lost. An update to the Fitbit Connect App is required.
The application continually gives a "Turn on your bluetooth on your Mac" error -- and since most of us are now using bluetooth keyboards, mice and trackpads, it is obvious to us that the bluetooth function is ON and WORKING.
The "solution" checkmarked and given as "best answer" in the other thread is to continually reboot your Mac each and every time you want to sync your fitbit with the cloud. And even that only works sporadically - and then only for a moment or two before failing again.
Moderator edit: updated subject for clarity
Join us on the Community Forums!
Community Guidelines
Learn the Basics
Join the Community!
Not finding your answer on the Community Forums?
Go to the Help Site
Contact Support