Basically, any notifications on your Android smartphone or tablet can be extended to display notifications on a device running Android with the utmost simplification effort.Jordan mentioned by adding a few lines of code, the developer can " provide richer experiences of smart wearable devices using stacks, pages, and voice answers. "
Notifications are determined by special application icons on the right corner of the notification. It seems that the messages take up half of the screen area. At the same time Google also introduced a swipe from right to left gesture that allows you to see other notifications on the screen. If you want to know how these notifications can be activated, see the video below.