How can I get my fitbit one to start syncing to the app again?

To phone:
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 again.
5. Open the Fitbit app.
6. If your Fitbit device didn't sync, restart it one more time.

No, you do not necessarily need a cell phone to use a Fitbit Inspire. While syncing the Fitbit with a smartphone can enhance its functionality by allowing you to receive notifications and track your data more comprehensively, you can still use the Fitbit Inspire without a smartphone.
To set up and use your Fitbit Inspire, you can follow these general steps:

1. Charge your Fitbit: Plug your charging cable into a USB port or wall adapter and connect it to the charging port on the back of your Fitbit Inspire. Charge it fully before you start using it.
2. Create a Fitbit account: If you don't have one, you will need to create a Fitbit account. You can do this on the Fitbit website or through the Fitbit app on a smartphone or tablet.
3. Set up your Fitbit: Follow the on-screen instructions on your Fitbit device or the Fitbit app to set up your device. This typically involves connecting your Fitbit to your Fitbit account.
4. Wear your Fitbit: Put on your Fitbit Inspire and start tracking your activity, sleep, and other metrics.
5. Sync with your phone or computer (optional): If you have a smartphone or a computer with Bluetooth capabilities, you can sync your Fitbit data with the Fitbit app or Fitbit website to see your stats, set goals, and track your progress more comprehensively.

You will have to Go to Settings> Bluetooth and turn Bluetooth off and back on. Open the Fitbit app. If your Fitbit device didn’t sync, restart it. If your Fitbit device won’t sync after your reinstall the app, log in to your Fitbit account on a different phone, tablet or computer and try to sync

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 iPhone or iPad. ...
5. Open the Fitbit app.
6. If your Fitbit device didn't sync, restart it.

Help article: Why won't my Fitbit device sync?

help.fitbit.com/articles/en_US/Help_article/1866

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