- Open the Withings App.
- Go to Profile.
- Tap on the Settings icon at the top-right corner of the page.
- Tap Emails and notifications.
- Check or uncheck the boxes of your choice.
- Tap Ok to validate.
https://support.withings.com/hc/ja/sections/6216033813649-Withings-App-Android
https://support.withings.com/hc/ja/sections/200501778-Tutorials