PlayStation hardware and software sales decline in Q3 FY19 | by Sohrab Osati | Sony Reconsidered
PS4 reportedly topped 108 million units sold as of March 2020 : r/Games
PlayStation 4 console and game sales decline as PS5 approaches | TechSpot
PS4 and Xbox One have sold 5.1 million units in the UK | GamesIndustry.biz
Nintendo Switch growth continues as aging rivals Sony PS4 and Microsoft Xbox One stagnate - GeekWire
Sony's PS4 is the fastest console to reach 100 million units sold - GSMArena.com news
PS4 Has Surpassed 108 Million Units Sold
Putting The PlayStation 4's 91.6 Million Sales Into Context
Xbox One vs PS4 vs Switch: Console and Game Sales Numbers - 2020 | Hooked On Tech
God of War Sales Have Passed 10 Million - IGN
Sony PS4 Poised to Pass PS3 Lifetime Sales, Switch Breaks 20 Million Units - ExtremeTech
What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
PlayStation gaming consoles: unit sales UK 2011-2019 | Statista
PlayStation hardware and software sales decline in Q3 FY19 | by Sohrab Osati | Sony Reconsidered
Nintendo Switch Is Beating PS4 In Console Sales - Gamezo
Global PS4 console unit sales 2021 | Statista
Compared to Wii U · Xbox One, this graphic shows the pace of sales of PS 4 that exceeded 30 million units sold at the fastest speed in PS history - GIGAZINE
PS4 Hits 47.4 Million Units Shipped Ahead of PS4 Pro Launch | USgamer
Sony expects PlayStation 5 to smash PS4 sales in next 5 years | TweakTown
Putting the PS4's 100 million sales in context | Ars Technica
PS4 Has Officially Sold 100 Million Units, and It's Done So Faster Than Any Other Console - Push Square
PS5 exceeds 13.4 million units sold; PS4 reaches 116.6 million - Market Research Telecast
What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
First-month sales of previous consoles vs. first 24H of PS4 sales : r/PS4