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Fitbit trackers and watches should sync when you open the Fitbit app or when you manually sync
your device. If your device doesn't sync, choose your platform below for troubleshooting steps.
iPhone or iPad
Android Phone
Windows 10 Phone or Tablet
Windows 10 Computer
Mac or Windows 8.1 Computer
iPhone or iPad
Syncing difficulty is usually caused by a missing requirement. Verify each requirement before
moving on to the troubleshooting steps.
The Fitbit app is installed on a supported iPhone or iPad. To check,
see http://www.fitbit.com/devices.
The latest version of the Fitbit app is installed on your iPhone or iPad.
Your iPhone or iPad has a cellular data or Wi-Fi connection.
The software on your iPhone or iPad is up to date. To check, tap Settings > General > Software
Update.
The Bluetooth setting on your iPhone or iPad is on. To check, tap Settings > Bluetooth.
Your iPhone or iPad isn't managing other Bluetooth connections. If you have multiple Bluetooth
products like speakers or headsets paired to your phone along with your Fitbit device, 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 device's battery isn't critically low.
The firmware on your Fitbit device is up to date as described in How do I update my Fitbit
device?
If your device still won't sync, try these steps:
1. Force quit the Fitbit app. For instructions see the Apple help article.
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. For instructions see the Apple help
article.
5. Open the Fitbit app.
6. If your Fitbit device didn't sync, restart it. For more information, see How do I restart my Fitbit
device?
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.
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