“Always on Display” is the revolutionary technology introduced by Samsung on selected phone models like Samsung Galaxy S7 Edge, Note 5 etc., You no need to turn on screen frequently to get the notification count and other details.
You can arrange the time, notification count, date on the phone screen even the display is turned off. The interesting thing is there is no battery overhead with this feature. By using the app I demonstrated in the below video you can get the same feature on your Android phone also.