Health Connect is a new service developed by Google that acts as a central hub for health data from various platforms, including the Withings App. In May 2024, Google unveiled that it was phasing out its Google Fit API in favor of Health Connect. 

Health Connect has now replaced Google Fit as the main supported Withings Partner "app" on Android. It is notable in that it is not technically an app but an SDK (Software Development Kit) and thus must be accessed via the Android device's Settings > Apps to adjust its settings.

To share data between the Withings app and Health Connect, follow these steps:

1. Open the Withings app and select the Share tab at the bottom right corner of the screen.

2. Scroll down and tap the Health Connect logo under 'Apps'.

3. You will be prompted to enable syncing with Health Connect.

4. Tap Activate.

5. Tap OK to access the next screen, which will allow you to import and export categories of data between Health Connect and the Withings App.

6. Toggle any data on or off that you want synced. Once the data has been selected, proceed to the next screen which will confirm that your choices have been saved. 

7. Tap Open on the next screen to open Health Connect and complete the sharing between the apps.
8. You will be presented with a welcome screen in Health Connect. Tap Get started. 

9. Toggle any data on or off that you want synced. Once the data has been selected, proceed to the next screen which will confirm that your choices have been saved. 

10. Once you have selected the desired data to be shared, tap Allow to finalize your decision.
11. Your data between the Withings App and Health Connect is now shared!