PS4's sales dominance slackens slightly in holiday season | Ars Technica
Switch vs PS4 Sales Comparison - October 2021
Xbox One and PS4 sales numbers don't matter right now (but you don't care) - GameSpot
PS4 is Selling at a Faster Rate Than Xbox One | SAP Blogs
Sony Announces 20.2 Million PlayStation 4 Consoles Sold - Game Informer
Chart: Nintendo Switch Passes PS4, Looks Unlikely to Catch PS2 | Statista
Global PS4 console unit sales 2021 | Statista
PlayStation Sales Numbers, Revenue & Users (2023)
Most downloaded, best-selling and famous PS4 games - Official stats by Sony
PS4 vs Xbox One vs Switch: Console and Game Sales Numbers - 2019 | Hooked On Tech
Sony PlayStation 4 Holiday Sales
PlayStation 4 Becomes Fastest-Ever Home Console to Sell 100 Million Units – GTPlanet
PlayStation 4 Games Lot! PS4 Games sold individually or as a bundle! | eBay
PS4 Pro - PlayStation 4 Pro Black 1TB | GameStop
Over 35.9 Million PlayStation 4 Systems Sold - IGN News - IGN
Switch vs PS4 vs Xbox One Global Lifetime Sales - August 2020
CES 2020: Sony announces updated PlayStation statistics – PS4 sales reach 106 million | KitGuru
Estimates Suggest PS4 Has Sold More than Double the Number of Xbox Ones Overall - Power Up Gaming
PlayStation 4 tops 91.6 million units sold - Gaming Age
PlayStation Sales Numbers, Revenue & Users (2023)
PS5 Sales Numbers 2023: How Many Playstation 5's Have Been Sold? - GameRevolution
It's official: Sony is the king of the consoles again – GeekWire
PlayStation 4 - Wikipedia
PS5 vs PS4 Sales Comparison - November 2021
Sony shipped 4.5 million PlayStation 5 in 2020, consoles are being sold at a loss - VideoCardz.com
