PS4 Remote Play

4.1.1

PS4 Remote Play is an application that lets users stream and play games from their PlayStation 4 on Sony Xperia smartphones and tablets. Read more about PS4 Remote Play  

PlayStation 4 users have the options of streaming the gameplay to various other devices, including phones and tablets, although this category only includes the ones from the Sony Xperia line. Furthermore, only a limited number of those can be used for this purpose, and an official list is available.
The basic principle is quite straightforward, you connect your Xperia smartphone or tablet to your home Wi-Fi network, get a controller, and continue to play your PS4 games on your Xperia device away from your TV screen.
As you can imagine, you will need to have access to a high-speed Internet connection and using public Wi-Fi networks is not recommended. Also, it’s quite possible that some games won’t have support for this particular feature.