Fitbit Product Experts Alumni are retired members of the Fitbit Product Expert Program. Learn more
I'm not sure if turning the Blaze off and off does the same as a restart but it's worth trying. Here's the procedure:
https://help.fitbit.com/articles/en_US/Help_article/1186/
The thing about it is that it doesn't always work so it's recommended to try it at least 3 times.
Best Answer