My solution for the syncing issues affecting Fitbit devices.

[chogardjr]

I have been having random sync issues for a year. I had tried all the suggestions under the sun. All were a temp fix or didn't fix it at all.

I am pretty sure I have found the issue. 

If you install the Fitbit app on any other mobile device it will interfere with syncing.

If you have installed the app on another mobile device, try turning the Bluetooth off on any other device you have the app installed on and try to sync again. You can choose the device you want to sync by turning the Bluetooth off on all the devices you do not want to sync to.

I use my tablet to view my results that I sync to my phone. If I forget to turn Bluetooth off on my tablet my phone absolutely will not sync until Bluetooth is turned off on the tablet. 

I have also definitely determined your tracker does not need to be listed in your mobile devices Bluetooth settings for it to sync and interfere with syncing on other devices. Fitbit links your tracker to your Fitbit account and when you sign into another mobile device, your tracker will connect to that device regardless if it is in the devices Bluetooth settings. This is the behavior of my tablet. My tablet does not have the tracker in its Bluetooth settings but when I turn Bluetooth off on my phone my tablet will sync with no issues. 

I have reported this behavior to the Fitbit app mobile team and have yet to hear back. I felt it was time to come to the community and report my findings so the Mobile app team can see this might be a bug and a fix should be implemented. There are a lot of us that would like to use two mobile devices, or more, to view our results while syncing with only one device.

This applies across IOS and Android devices. If you use both this issue still applies.

I hope this helps out at least one person. Good luck and happy stepping 

Moderator Edit: Clarified Subject.

[MarcoGFitbit]

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

We really appreciate our members's input and I would like to thank you for yours. Our team is always looking to improve the Fitbit experience and I appreciate you have taken the time to post your findings and troubleshooting steps that helped you resolve your syncing issues. I'm sure they will be very helpful for many member of the Community facing the same situation. 

Once again, I would like to thank you for your contribution, 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!