The "feat" was announced today by Google on Twitter, associating the quality of video calls in 1080p with Samsung's 5G and Galaxy S20.
The Google app has been improved and supports group calls, up to 8 people, allowing users to connect Android and iOS users, on mobile phones and computers. As in an answering machine, you can leave video messages, even in low light you can record the image, but if you want you can also make voice calls only.
The application is an alternative to WhatsApp or Facebook Messenger and can be downloaded for free from the Google Play store for Android, and the App Store for iOS.
