Works with Nest (WWN) was the original way that third party partners could access and control your Nest products. They were fully integrated with a Nest product and could check and change its status. Works with Nest connections will continue to work for those users who have a non-migrated Nest Account in the Nest app for as long as our partners support them.
Works with Google Assistant (WWGA) enables the Google Assistant to control all your connected products. You can use the Google Assistant to create Assistant Routines in the Home or Assistant apps. We’ve announced two new aspects of WWGA specifically for the products in your home: Device Access and Home & Away Routines.
Read more on our blog to learn about Device Access and other ways to create a helpful home.
When you remove a Nest product such as Nest thermostat from your account in the Nest app, you’ll lose many of the functions and control that depend on the app, such as remote temperature control with your phone and notifications.
You’ll also lose any additional features you get from your Works with Nest (WWN) connections. What specifically happens to the features enabled by your WWN connection depends on which Nest products you’re removing and which WWN connections you’re using. Please check with the connection developer to find out what features will be disabled.
The connection will still be listed in the Nest app, so you’ll need to manually remove it.