What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
PS5 and PS4 System Software Updates release globally today – PlayStation .Blog
PS4 vs Xbox One vs Switch: Console and Game Sales Numbers - 2019 | Hooked On Tech
Sony PS4 Is Well Ahead Of Microsoft Xbox One In Worldwide Sales Since Launch - MSPoweruser
PlayStation 4 Reaches 106 Million Units Sold Worldwide - Siliconera
List of best-selling PlayStation 4 video games - Wikipedia
Global PS4 console unit sales 2021 | Statista
Switch vs PS4 vs Xbox One Global Lifetime Sales - January 2021
Global PS4 console unit sales 2021 | Statista
Sony worldwide PS4 sales reach 35.9M; holiday sales hit 5.7M in 2015 – GeekWire
PlayStation 4 sales exceed 40m worldwide | GamesIndustry.biz
PlayStation 4 lifespan reportedly extended, as PS5 supply issues continue | Eurogamer.net
PS4 VS Xbox One Sales Has PS4 Winning
PlayStation 4 sales surpass 40 million units worldwide, 270.9 million PS4 games sold - AR12Gaming
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PS4 unit sales top 70 million worldwide - Polygon
PlayStation 4 Exceeds 112 Million Consoles Sold Worldwide - Gamer Tweak
PlayStation 4 sales hit 112.3 million worldwide, up 1.9 million in Q1
PlayStation 4 Sales Surpass 50 Million Units
Analysis: Sony pushes past 50 percent of the worldwide console market | Ars Technica
PlayStation 4 sales hit 112.3 million worldwide, up 1.9 million in Q1
PS4 sales reach 91.6 million worldwide | GamesIndustry.biz
PlayStation 4 Sales Surpass 30.2 Million Units Worldwide | GodisaGeek.com
Sony PS4 Sales Top 5.3M Worldwide | PCMag
Sony PlayStation unit sales by console 2021 | Statista
