Charge 4 won't sync properly after switching phones

[-8-]

Recently I switched from an Android phone to an iPhone 13 Mini and since then I have issues syncing my Charge 4. I've never had this problem before.

Whenever I open the Fitbit app it usually (not always) says that it can't sync, but when I manually sync it will always sync without any problems.

There seems to be a problem where it doesn't occasionally sync in the background because whenever I go for a run it also most of the time stops early on tracking with GPS (when set to dynamic GPS and when set to phone only GPS). The Charge 4 then says it couldn't connect to the GPS during the run.

I've tried to restart the Charge 4 and I've tried to reset the Charge 4 back to factory settings (clear user data, removed the Charge 4 from Fitbit account, forget Charge 4 in bluetooth settings, and added the Charge 4 as new in the app), which doesn't seem to help.

Moderator Edit: Clarified subject

[MarreFitbit]

Hi there, @-8-. Welcome to the Community Forums. Thanks for trying to troubleshoot the issue with your Charge 4 before reaching out. I understand where your concern is coming from. 

It seems that your tracker cannot connect properly to your new phone since you haven't yet forgotten the connection between your watch and the old phone's Bluetooth which would explain the connectivity issues you're running into. With that said, try the steps below: 

• Unpair your Charge 4 from your old phone's Bluetooth and also from the new phone.
• Force quit the Fitbit app.
• Turn off other Bluetooth connections when not in use. This can help to prevent connectivity issues or Bluetooth interference.
• Shut off your phone and turn it on after 1-2 minutes.
• Turn on the Bluetooth on your new phone.
• Plug it into the charging cable and open the Fitbit app.
• Set up your Charge 4 again.
• If there is no connection, restart your Charge 4.

Hope that helps. 

[-8-]

Thanks for your reply, but it's still not syncing properly.

The Charge 4 was unpaired from the old phone (I double checked), the Fitbit app was removed, and it's been shut off.

I've set the Charge 4 back again to factory settings with your steps above and added it again to my account as new, but it still usually says that it can't sync when opening the app.

[Johnerz]

-8-

I have the same issue with my new Charge 4. You can do a manual sync (mine works every time I do this) leading me to believe it’s an error in the app.

From the Today screen, tap the icon on the very top left of “fitbit”

select your Charge 4

Scroll down to “Sync Now” tap it and watch.

johners

[MarreFitbit · Accepted solution]

@-8-  I appreciate you had followed the tips and recommendations provided above.

At this moment, I’ve reached the limits of what I can do for you here on the public community forums. The best way to get help for this problem is to chat with us online or give us a call. Click here to get connected.

@Johnerz Thank you for helping out! Nevertheless, if you're too experiencing syncing difficulties, may I know the model of your mobile phone? Please make sure it meets the requirements listed here.

Despite meeting the above requirements, the following devices often exhibit compatibility issues that cause our products and services to not operate properly:

• Huawei P8 Lite
• Huawei P9 Lite 
• Xiaomi Mi 6 
• Huawei P20 Lite 
• See these additional instructions for help resolving any issues using the Fitbit app on this device.

For more troubleshooting steps, see Why won't my Fitbit device sync?

[Johnerz]

MareFitbit,

 Thanks for the reply, I’ve an iPhone 13, so don’t expect that’s an issue. I’ve been through the link you supplied a couple of times and syncing is still hit and miss.

Just now is synced correctly, earlier this evening  it did not, I’m just hoping it resolves itself soon.

johnerz

[MarreFitbit]

@Johnerz Thanks for the details shared.

At this moment, I’ve reached the limits of what I can do for you here on the public community forums. The best way to get help for this problem is to chat with us online or give us a call. Click here to get connected.

We hope your issue is solved soon.