8. If your Fitbit device still doesn’t sync, remove all other Fitbit devices from your account and
from the list of connected Bluetooth devices on your iPhone or iPad and try to sync.
Android Phone
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 phone or tablet. To check,
see http://www.fitbit.com/devices.
The latest version of the Fitbit app is installed on your phone or tablet.
Your phone has a cellular data or Wi-Fi connection.
The Fitbit app is allowed to run in the background on your phone. For more information, see
What should I know about using the Fitbit app on my Android phone?
The Bluetooth setting on your phone is on. To check, tap Settings > Bluetooth.
Your software on your phone is up to date. To check, tap Settings > About Phone or About
Device > Android Version.
You have location services turned on and the Fitbit app has permission to access your location.
For more information see, Why is the Fitbit app prompting me to turn on location services?
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 phone 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.
Your phone doesn't have a syncing issue listed in What should I know about using the Fitbit app
on my Android phone?
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?
Depending your phone, these tips might make syncing easier:
Turn on the Always Connected option in the Fitbit app. This setting improves the Bluetooth
connection between your phone and Fitbit device. Note that turning on this feature may cause
the battery on your Fitbit device to drain more quickly than normal.
Turn on All-Day Sync in the Fitbit app. This setting prompts your Fitbit device to periodically sync
with the Fitbit app but may shorten battery life on your phone or Fitbit device.
If your Fitbit device still won't sync, try these steps:
1. Force quit and then reopen 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 it. For instructions see How do I restart my Fitbit device?
5. Uninstall and reinstall the Fitbit app.