Hi there @Pamob, good to see you have joined the Fitbit Community! Try with your husband the following steps for syncing issues: Having trouble syncing? (here's how to fix this).
In addition if both of you have recently updated the app, please try the steps from this post.(The scenario if different but we can apply the troubleshooting steps here).
Indeed, Samsung has released a new update that might require further review regarding the syncing process. For more updates please take a look to our dedicated post here.
Hope this helps and keep me posted how it goes.
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