Platform: PlayStation 4

According to President of Sony Computer Entertainment Worldwide, Shuhei Yoshida, some of the features of PlayStation 4 were inspired by Dark Souls and Demon's Souls.

DualShock 4 controllers include a built-in light indicator to be used alongside the Morpheus VR headset. This means that the Morpheus headset was a key component to the design of the controllers, prior to the headset even being announced.

Kazuya Sakakihara, a senior software engineer who previously worked for Sony during the creation of the PlayStation 3 and PlayStation 4, left his name within a snippet of code used for the PlayStation 4's hard drive. The location of his name in the code is unusual, as names are often left in a separate part of code data for storing comment data, often in abbreviation or initials. However, in the case of Kazuya Sakakihara, his name is left in full within the middle of the data unencrypted, although with a minor spelling mistake.

In commemoration of the PlayStation brand turning 20 years old, Sony released a PlayStation 1 gray colored PlayStation 4. Only 12,300 numbered consoles in this color scheme were created.

The PlayStation 4 cost $381 to build, which is considerably less than compared to the PlayStation 3 which cost $805 to first produce.

The sticker on the back of the console which states "Warranty void if removed." is actually illegal. According to the Federal Trade Commission (FTC), the sticker violates the 1975 Magnuson-Moss Warranty Act which states that any manufacturer that charges more than $5 for their product cannot put repair restrictions on a device that it offers a warranty for. On April 9th, 2018, the FTC sent a letter to Sony, as well as Nintendo, Microsoft and Apple, who place similar stickers on their consoles and devices, giving them a 30 day warning to change their official warranty policies or face legal action.

In 2019, UK bargain store Aldi attempted a publicity stunt known as the "Teatime Takedown", where parents would send Aldi their childrens' usernames on gaming platforms (with the service being provided for the Xbox One and PlayStation 4 consoles, and unusually the streaming platform Twitch) and the supermarket would send professional gamers to defeat the child in-game so they would eat their food, though Aldi claimed that the effectiveness of the program may vary. Despite a released commercial for the campaign showing children "rage quitting" FPS games, the hired eSports teams, originating from Veloce, specialized in racing games. This sparked massive backlash within the UK eSports community, to the point where Resolve eSports offered to send its players to help kids fight back against the bullies. Aldi would eventually cancel the campaign and send coupons to those who complained as a form of apology. Print adverts were made, but are not known to have been printed in any magazines or catalogues, and radio and till reciept ads were planned.