Game On: PlayStation 4 will be phased out starting in 2025, and that's OK | The Spokesman-Review
Limited edition PS4 celebrates 500 million PlayStation consoles sold | Engadget
PlayStation 4 Pro Review: Comparing PS4 vs. PS4 Pro | WIRED
PS4 has sold over 1 billion games and 106 million consoles
Best-Selling Video Game Consoles | DMarket | Blog
Sony has sold over 70 million PS4 consoles, 2 million VR headsets | TechCrunch
PS4 vs. Xbox One Sales: PS4 Wins February, but Lead Shrinks | Time
PS4 Pro Represents Nearly One in Every Five PS4s Sold - IGN
PS4 Sold 6 Units A Minute, PS5 Is Selling Nearly 1,000
The PS4 Has Now Sold 53.4 Million Units Worldwide, With 6.2 Million Sales Over The 2016 Holidays
What to Do With Your Old PlayStation 4 | WIRED
PlayStation 4 - Wikipedia
PlayStation 4 lifespan reportedly extended, as PS5 supply issues continue | Eurogamer.net
List of best-selling PlayStation 4 video games - Wikipedia
Global PS4 console unit sales 2021 | Statista
PlayStation 4 lifetime unit sales by region 2022 | Statista
The Best-Selling Video Game Consoles of All Time - VR.Space
PS4 Pro - PlayStation 4 Pro Black 1TB | GameStop
What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
Sony PlayStation 4 Sells 5.7 Million Units Over the Holidays | Time
Playstation sells 19 millionth PS5, might finally make consoles faster soon
