Fitbit Product Experts Alumni are retired members of the Fitbit Product Expert Program. Learn more
The Ultra was discontinued long ago and the ability to sync was withdrawn in August 2018. See comments from the moderators in this thread:
https://community.fitbit.com/t5/Fitbit-com-Dashboard/Support-for-Fitbit-Ultra/m-p/2845811
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Fitbit Product Experts Alumni are retired members of the Fitbit Product Expert Program. Learn more
That's correct. If you are unable to sync the fitbit it becomes more or less useless.
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