05-08-2016 16:16
05-08-2016 16:16
05-08-2016 22:29
05-08-2016 22:29
Your data will still be safe as your fitbit can store up to a week's data between syncs.
The first thing to try when a fitbit stops syncing is restarting your phone and the restarting your fitbit using this procedure:
https://help.fitbit.com/articles/en_US/Help_article/1186/
You may want to try this a few times as it doesn't always work first time.
If it still won't sync then there are some more ideas in this article:
http://help.fitbit.com/articles/en_US/Help_article/I-can-t-sync-my-tracker/