PS5 Reveal Caused PS4 Sales To Fall Below Sony's Expectations - GameSpot
New PS4 Pro 500 Million Limited Edition Announced - Celebrates New PlayStation Milestone –
Sony's aiming to sell 100 million PS5 consoles in record-breaking time
PS4 Edging Closer to 100 Million Units After Strong Holiday Season Sales
PlayStation 4 and Xbox One UK sales pass 5m mark
Sony's PlayStation 4 Sales Top 6 Million – The Hollywood Reporter
Japanese Sales Charts: PS4 Passes 5 Million Milestone
Sony May Sell 100 Million PlayStation 4 Consoles By 2019, Launch PS5 In 2021
New PS4 Pro 500 Million Limited Edition Announced - Celebrates New PlayStation Milestone –
Switch Outsells Wii And PlayStation, Passes 100 Million Faster Than Any Other Home Console
PS4 sales reach 91.6 million worldwide
PS5 is the fastest-selling PlayStation as it hits 10m sales milestone : r/Games