Create a free Google Health Account at www.google.com/health
Login to your Withings account and from your personnal web dashboard, select the user profile you want to link with your Google Health account. Clik on the « Share » panel at the top of the screen then click on « link with my Google Health account »
Enter your Google credentials and select the Google Health profile you want the Body Scale to link with
Your both accounts are now linked !
You can choose to send only your neaw measurements to your Google Health account (default setting) or to also include all your past measruments you have on your Withings profile (check the dedicated check box).
From now on, your measurements will be available under the « Test results » section of Google Health.
How to unlink your account with Google Health
From your personnal web dashboard, select the user profile you want to unlink with Google Health. Clik on the « Share » panel at the top of the screen then click on « unlink with Google Health »