How To Fix A Fitbit That Won’t Sync (Charge, Versa & Sense)


Fitbit‘s wearables work with both Android and iOS, but there are times when a Fitbit might fail to sync with a connected device. This is a fairly common issue, and one that can be annoying when users want to check stats like calories burned, workouts, and more on the app. Sometimes, the issue is temporary, and other times, the Fitbit will refuse to sync at all. For any users who are currently experiencing a syncing issue like this, there are some fixes that might help to solve the problem.



It is recommended that users sync data from their wearable to their paired device every day. While that might not be possible for everyone, it is best to sync at least every once a week, as current Fitbit models, including the Charge, Sense, and Versa, can only store data for up to seven days. Syncing is a fairly easy process. All a user has to do is fire up the Fitbit app on their iPhone or Android, and it should sync automatically. The Fitbit has to be near the phone for syncing to be completed and an active internet connection is required.

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How To Fix Fitbit Syncing Issues On Android & iOS

Fitbit Sense And Fitbit Charge 5 ECG App

Fitbit also provides the option to manually sync data. To do this, users should open the app, tap the ‘Today’ tab at the bottom and pull down on the screen. Wait a few seconds, and the Fitbit should be synced. Alternatively, users can tap their profile picture in the top left corner, and tap ‘Sync Now.’ Sometimes, users might find that Fitbit refuses to manually sync a device. If that happens, there are steps that can be taken to solve the issue.

First, close the Fitbit app and turn off Bluetooth on the smartphone. Then restart the Fitbit device, turn Bluetooth back on and reopen the app. It is also worth checking that the internet connection is active, either by switching to mobile data or connecting to a different Wi-Fi network, depending on what the phone is connected to. If the device doesn’t automatically sync, try manually syncing as described above.

If syncing issues persist, check if there is an update available for the Fitbit app. iPhone users can do this by going to the App Store, while Android users can check for an update via the Play Store. Search for the Fitbit app on either store, and tap the ‘Update‘ button next to the app if displayed. Users should also check if their device meets the minimum software version required for a Fitbit device. For Android devices, the phone must be running Android 10 or higher while iPhones must be running iOS 14 or higher. Users should also make sure their smartphone is updated to the latest software version.

A Fitbit may not sync if it isn’t running the latest software version. To check if there is an update for the Fitbit, open the companion app, select the ‘Today’ tab at the bottom of the screen, and click on the profile picture in the top left corner. Tap the device image, and if there is an update available, a pink ‘Update‘ button should be visible. Tap it to install the update on the Fitbit device.

Other Ways To Troubleshoot A Fitbit That Won’t Sync

Fitbit Versa 4

If the above methods don’t work, try removing Fitbit from the list of Bluetooth devices on the paired smartphone. To do this on iPhone, open Settings, tap ‘Bluetooth‘ and find the Fitbit device in the list. Tap the ‘i’ next to the device name, and on the next page, select ‘Forget this device.’ To do this on Android, follow the same steps and select ‘Unpair.’ Now, pair the Fitbit device again and check if the data syncs.

As a final option, users can try uninstalling the Fitbit device from their smartphone. Before doing this, make sure to log out of the account by tapping the profile picture in the top left corner of the app, scrolling down to the bottom of the page, and tapping ‘Log Out.’ Once the app is deleted from the phone, reinstall it from the app store and log back in. This should force the app to pair with the Fitbit device and sync the data.

Source: Fitbit