My current go-to screen for the system is the Asus VG279Q, but there are plenty of 1440p and 4K options kicking around that'll pair nicely with the OG PlayStation 4 and the PS4 Pro. While I'd ...
The Vita also presents an avenue for second-screen functionality for PlayStation 4, but Sony has smartly expanded beyond their own handheld with this week's release of the PlayStation App.