Why won't my Fitbit device sync?

Each time you open the Fitbit app, your device syncs automatically when it's nearby. Or manually sync your device:

1. With your device nearby, open the Fitbit app and tap Today .
2. Press and hold on the screen and pull down.

If your device doesn't sync:

1. Force quit the Fitbit app on your phone. For instructions, see the Apple help article or Android (Google) help article.
2. On your phone, go to Settings Bluetooth and turn Bluetooth off and back on.
3. Open the Fitbit app and try to sync your device.
4. If your device doesn't sync, restart it. For instructions, see How do I restart my Fitbit device?

If you still have trouble, follow the steps below depending on your phone.

If you can’t transfer data from your watch to your Fitbit account, see the information below. For other connectivity issues, see Fix Bluetooth, connection, and LTE issues on Google Pixel Watch.

Requirements

• Your watch shows as “Connected” on the home screen in the Google Pixel Watch app .
• Your watch is connected to Bluetooth, cellular data (LTE), or Wi-Fi. For more information, see Fix Bluetooth, connection, and LTE issues on Google Pixel Watch.
• Your phone is connected to cellular data (LTE) or Wi-Fi.
• The Bluetooth setting on your phone is turned on. To check, tap SettingsBluetooth.
• Your watch is connected to the Fitbit app on your phone. From the Today tab in the Fitbit app , tap Devices . Google Pixel Watch should appear.
• The Fitbit app on your watch is up-to-date. Press the crown, swipe up to the Play Store app , and tap the app to open it.Swipe up and tap Manage apps Update all. To check for system updates, see Check for updates.
• The Fitbit app on your phone is up-to-date. For more information, see How do I use the Fitbit app?
• Your phone is running the latest version of Android OS. To check, tap SettingsAbout Phone or About DeviceAndroid Version. To confirm your phone is running a supported version of Android OS, see Fitbit-compatible devices.
• Your watch is charged.

Troubleshooting tips

1. Force quit the Fitbit app on your phone. For instructions, see the Android (Google) help article.
2. On your phone, go to Settings Bluetooth and turn Bluetooth off and back on.
3. Open the Fitbit app and try to sync your watch
4. If your watch doesn't sync, restart it. From the clock screen, swipe up Settings System Restart.

If you still have trouble, follow these steps. Reopen the Fitbit app after each step to see if your watch syncs.

1. Restart your phone.
2. Uninstall and reinstall the Fitbit app on your phone. Note: Before you uninstall the app, verify that your phone is running a supported version of Android OS. If your phone is on an older version, you won’t be able to reinstall the app. For OS requirements, see Fitbit-compatible devices.
3. Remove all other Fitbit devices from your account and from the list of connected Bluetooth devices on your phone.

Aria Air

Requirements

• You have the Fitbit app open and on the Today tab on your nearby phone or tablet while you complete a weigh-in.
• The latest version of the Fitbit app is installed on your phone or tablet.
• The Bluetooth setting on your phone or tablet is on. To check, tap Settings Bluetooth.
• Your phone or tablet isn't managing other Bluetooth connections. If you have multiple Bluetooth products like speakers or headsets paired to your phone along with your Fitbit scale, you may have trouble using more than one at the same time. Turn off other Bluetooth connections when not in use.
• If you use more than one device to sync, make sure the other device isn't nearby. If the device is nearby, turn off Bluetooth on it.
• Your Fitbit scale's battery isn't critically low.

Troubleshooting steps

1. Force quit and then reopen the Fitbit app.
2. Go to Settings Bluetooth and turn Bluetooth off and back on.
3. Turn your phone or tablet off and back on.
4. Uninstall and reinstall the Fitbit app.
5. If your Fitbit scale won't sync after you reinstall the app, log in to your Fitbit account on a different phone or tablet and try to sync.
6. If your Fitbit scale still doesn’t sync, remove all other Fitbit devices from your account and from the list of connected Bluetooth devices on your phone and try to sync.

Aria & Aria 2

After weighing in on Fitbit Aria or Fitbit Aria 2, the scale should display a progress bar, followed by a check mark, which indicates the new measurement synced successfully.

If the scale doesn't sync, you may see one of the following error messages on the scale’s screen:

• NO SYNC
• WIFI Symbol with an “X”
• WRONG PASSWORD
• CONNECTION ERROR
• CAN'T CONNECT
• NO WIFI
• WEAK SIGNAL
• No error message, but the measurement doesn't sync to your Fitbit account

If any of these conditions occur, try weighing yourself again. If the scale successfully syncs, it may have been a temporary issue that doesn't require further troubleshooting. If the problem persists, try the following tips:

• Check that your router is on and working. If other devices are also unable to connect to your Wi-Fi network, restart your router.
• Remove the batteries from your scale for 10 seconds, then reinsert them to restart your scale.
• If you've made any changes to your network, such as a new router, network name, or password, see How do I use my Fitbit scale?
• Your scale may be too far away from your router. Several walls, floors, or objects between the scale and router can cause interference. Try moving the scale closer to your router.
• The network may have too much traffic or there are too many other Wi-Fi networks nearby. Don't use public Wi-Fi to sync your scale.

If you still can't sync, contact Customer Support. For additional information on error messages, see How do I use my Fitbit scale?