To link Withings scale to Fitbit, you must use Health Connect as a bridge because the official direct integration has been broken for years. This is the only reliably working method to automatically sync your weight data from a Withings scale into the Fitbit app.
The official way to link withings scale to Fitbit is broken
Withings and Fitbit once offered a direct connection through the page at Fitbit.com/weight/withings, intended to automatically send your scale measurements into your Fitbit dashboard. That official integration has been widely reported as broken or unreliable since at least August 2020, and it has never been consistently fixed. While you can still visit that page and attempt to link accounts, you should expect it to fail or lose sync without warning. The direct connectivity between Withings and Fitbit has been problematic since at least January 2019, and there is no indication it will return as a stable solution. If you are on that integration page, click "Download Withings Data" on the left. Go to www.withings.com and ensure your account is set to "Enable weight data sharing" in the "Share / Publish on the web" section. Click "Unlink my accounts" on the left and then relink them. Contact Fitbit customer support.
The working workaround: use Health Connect
Health Connect is an Android system app that acts as a central hub for health data, allowing apps like Withings Health Mate and Fitbit to share information with your permission. Withings officially supports exporting your weight and body composition data to Health Connect, and Fitbit can then read that data from Health Connect. This is the currently supported method to link Withings scale to Fitbit, and it does not rely on any third-party services or broken web pages.
Prerequisites for the sync
Before you begin, you need the following on the same Android phone:
- The Withings Health Mate app installed and logged into your Withings account
- A configured Withings scale that is already syncing data to your Withings account
- The Fitbit app installed and logged into your Fitbit account
- Health Connect installed on your phone (it is preinstalled on many Android 14+ devices or available through the Play Store)
This method works on Android only.
Step 1: export your withings data to Health Connect
- Open the Withings Health Mate app and go to your Profile.
- Tap the Settings gear icon in the upper right corner.
- Tap "Export health data to Health Connect."
- You will be prompted to connect with Health Connect; tap "Next" to continue.
- You will be taken to your phone's Settings > Edit Permissions > Withings to choose which categories of data to export. Toggle weight data on (you may also toggle body fat percentage, muscle mass, and other metrics if desired).
- Tap "Allow" to grant permission.
- Allow a moment for the connection to complete, then tap "Done."
Your Withings scale data will now be written into Health Connect automatically after each weigh-in, as long as the Health Mate app has background sync enabled.
Step 2: connect Fitbit to Health Connect
- Open your phone's Settings app and go to Apps > Health Connect (or search for Health Connect in Settings).
- Tap "App permissions" or "Data & access."
- Find Fitbit in the list of connected apps and tap it.
- Ensure that the permission to read weight data is turned on. You may also need to grant permission to read body fat percentage or other body measurements if you want those to appear in Fitbit.
- If Fitbit is not listed, open the Fitbit app, go to your profile, tap the gear icon, and look for a "Health Connect" option to enable the connection.
Once Fitbit has permission to read weight data from Health Connect, any new weigh-ins from your Withings scale will appear in the Fitbit app. You may also need to complete the Fitbit setup and pairing for your Fitbit device if you have not already done so, but that is a separate process unrelated to this sync.
What to expect after linking
This is a one-way sync from Withings to Fitbit. Your weight, body fat percentage, and other body composition measurements recorded by your Withings scale will appear in the Fitbit app, but data from Fitbit (such as steps or sleep) will not be sent back to Withings. The sync is not instant; it typically updates within a few minutes after a weigh-in, but delays can occur depending on your phone's background activity settings. Manually entered weight data in Health Connect will not be imported into the Withings app. Steps that have been manually entered in Health Connect will not be imported to the Withings App. Only data recorded by your Withings scale and exported through Health Connect will transfer. If you ever want to stop the sync, you can revoke permissions in Health Connect or in the Withings app settings.
Frequently Asked Questions
Can I use this method with an iPhone?
No. Health Connect is an Android-only system app. There is no equivalent workaround for iOS to automatically sync Withings scale data to Fitbit.
Will my historical weight data from Withings appear in Fitbit?
No. Health Connect only transfers new data recorded after you set up the connection. Past weigh-ins stored in your Withings account will not be exported to Fitbit through this method.
Do I need to keep the Withings Health Mate app open for the sync to work?
No, but the app must be allowed to run in the background on your Android phone. If you force-close the app or restrict its background activity, new weigh-ins may not be exported to Health Connect until you reopen the app.
Will my Fitbit device show the weight data from my Withings scale?
Yes. Once the sync is working, your weight will appear in the Fitbit app dashboard and can be viewed on your Fitbit device if it supports weight display (such as the Fitbit Aria series or certain smartwatches with the Fitbit Today app).
Can I link multiple Withings scales to the same Fitbit account?
Yes. As long as all scales are connected to the same Withings account, their data will be exported to Health Connect and then to Fitbit. Each weigh-in will be attributed to the same Fitbit profile.
