Research Firm Claims Fall of PlayStation in Japan is "Definitive;" Blames Censorship and not Realizing Japan's Potential - Niche Gamer
PS4 Sales in Japan Reach Three Millions Milestone
PS5 vs PS4 Sales Comparison - April 2021
PS4 vs Xbox One vs Switch Japan Lifetime Sales – October 2017
PlayStation 5 Has Surpassed 1 Million Units Sold in Japan
PS4 vs Xbox One vs Wii U Japan Lifetime Sales – May 2017 Update
Sony Japan Discontinues All But One PlayStation 4 Model – GTPlanet
PlayStation Sold Less Than 1 Million Units In Japan In 2020, Making It Its Lowest Year Since 1994
PS5 vs PS4 Sales Comparison - April 2021
Nintendo Has Almost Completely Pushed Sony Out of Japan
PS4 Sales Continue Improving While New 3DS Tops the Charts in Japan | Attack of the Fanboy
PS4 sales hit 5.3 million ahead of Japan launch, while Xbox One sits pretty at 3.6 million - ExtremeTech
Switch vs PS4 Sales Comparison - October 2021
PS4 sales hit 88 million, surpass PS3 | TweakTown
The PS4 Has Now Sold 53.4 Million Units Worldwide, With 6.2 Million Sales Over The 2016 Holidays
Japanese Sales Charts: PS4 Numbers Increase Dramatically, But Nothing Can Stop Smash - Push Square
List of best-selling PlayStation 4 video games - Wikipedia
PS4 vs Xbox One vs Switch Japan Lifetime Sales – October 2017
PS4 vs PS3 in Japan Sales Comparison - PS4 Falls Further Behind in August 2020
PS4 vs Xbox One vs Wii U Japan Lifetime Sales – December 2015 Update
What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
Report: PlayStation Brand 'In Decisive Decline in Japan,' Research Firm 'Deeply Concerned'
