PlayStation 4 sales remain steady, surpass 7 million sold worldwide
Switch vs PS4 vs Xbox One Global Lifetime Sales - January 2021
Switch vs PS4 Sales Comparison – January 2021
PlayStation gaming consoles: unit sales UK 2011-2019 | Statista
PS4's sales dominance slackens slightly in holiday season | Ars Technica
PlayStation 4 sales are slowing as PS5 looms this year - The Verge
CES 2020: Sony announces updated PlayStation statistics – PS4 sales reach 106 million | KitGuru
PS5 vs PS4 Sales Comparison - April 2021
PlayStation 4 sales hit 113.8 million, Q2 sales dip 46% to 1.5 million | TweakTown
PS4 sales dwindle, total 116.1 million as PS5 breaks into Sony charts | TweakTown
PlayStation 4 Year-End Sales Were Off The Charts
Global PS4 console unit sales 2021 | Statista
PlayStation 4 sales hit 112.3 million worldwide, up 1.9 million in Q1 | TweakTown
PS4 Most Successful Console Launch Ever
What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
PlayStation 4 sales are slowing as PS5 looms this year - The Verge
PS5 vs PS4 Sales Comparison - August 2021
The Nintendo Switch outsold PlayStation 4 and claimed 76% of the Japanese gaming market in 2019
PS4 sales dwindle, total 116.1 million as PS5 breaks into Sony charts | TweakTown
Xbox One vs PS4 vs Switch: Console and Game Sales Numbers - 2020 | Hooked On Tech
How Many PlayStation 4 Consoles Has Sony Sold? Over 102 Million.
Xbox One vs PS4 vs Switch: Console and Game Sales Numbers - 2020 | Hooked On Tech
Updated numbers show PS4 with at least 65 percent of two-console market | Ars Technica
