Fitbit device not syncing.

[NanaDi]

My Fitbit won’t sync at all. New sim put in my phone last night but everything else is fine .

can you advise?

Moderator Edit: Clarified Subject.

[MarcoGFitbit]

Hello @NanaDi, I hope you're doing well, it's nice to see you around the Fitbit Community. 

I appreciate your participation in the Forums and for sharing your experience with us. At this moment, if your tracker or watch is not syncing correctly, I would like to suggest you the following:

• Make sure the latest version of the Fitbit app is installed on your phone.
• The software on your mobile device is up to date. To check, tap Settings > General > Software Update.
• Make sure there are no other Bluetooth devices around as they might interfere with the syncing process
• Check that your Fitbit device's battery isn't critically low.

If your device still won't sync, try these steps:

1. Force quit the Fitbit app. 
2. Go to Settings > Bluetooth and turn Bluetooth off and back on.
3. Open the Fitbit app.
4. If your Fitbit device didn't sync, restart your phone.
5. Open the Fitbit app.
6. If your Fitbit device didn't sync, restart it.
7. If your Fitbit device won't sync after the restart, log in to your Fitbit account on a different phone, tablet, or computer and try to sync.
8. If your Fitbit device still doesn’t sync, remove all other Fitbit devices from your account and from the list of connected Bluetooth devices on your mobile device and try to sync.

I hope this can be helpful, give it a try and keep me posted in case you need anything else. 

[mclfbitowner]

There is a known IOS 12 syncing issue with Blue Tooth.

https://appletoolbox.com/2018/09/bluetooth-problems-with-ios-12-how-to-fix/

[MarcoGFitbit]

Hello @mclfbitowner, I hope you're doing well, it's nice to see you around. 

I appreciate your participation in the Forums and for taking the time to share this information with us. In case you have some spare time, I would like to invite you to visit our Discussions board where you will find great tips and encouragement from other members and if there's anything else I can do for you, please keep me posted!