PS4 vs Xbox One vs Switch: Console and Game Sales Numbers - 2019 | Hooked On Tech
Chart: Sony Holds Edge Over Microsoft in Battle for the Living Room | Statista
Online auctions show more early demand for PS4 over Xbox One | Ars Technica
Switch vs PS4 vs Xbox One Global Lifetime Sales - January 2021
Xbox One slowly narrows its quarterly sales deficit against the PS4 [Updated] | Ars Technica
Xbox One and PS4 sales numbers don't matter right now (but you don't care) - GameSpot
U.S. PlayStation unit sales by console 2022 | Statista
PS4 Most Successful Console Launch Ever
IGN - PlayStation 4's sales have overtaken the Wii and original PlayStation, making it the fourth best-selling console of all time. | Facebook
The Best-Selling Video Game Consoles of All Time
Comparing the launch aligned sales figures of the PS4 and Switch reveals that the Switch's momentum is massive, the highest this console generation. 100m seems very possible. : r/NintendoSwitch
Final Sales Number For The PS4 Is Staggering
Xbox One and PS4 sales numbers don't matter right now (but you don't care) - GameSpot
PS4 vs Xbox One vs Switch: Console and Game Sales Numbers - 2019 | Hooked On Tech
Has the PS4 peaked? Annual console shipments are flat for 2017 [Updated] | Ars Technica
Sony has sold over 70 million PS4 consoles, 2 million VR headsets | TechCrunch
Switch vs PS4 Sales Comparison - June 2022
PS5 vs PS4 Sales Comparison - August 2021
CES 2020: Sony announces updated PlayStation statistics – PS4 sales reach 106 million | KitGuru
PS4 Sold 6 Units A Minute, PS5 Is Selling Nearly 1,000
PS4's sales dominance slackens slightly in holiday season | Ars Technica
PlayStation 4 - Wikipedia
Putting The PlayStation 4's 91.6 Million Sales Into Context
Updated numbers show PS4 with at least 65 percent of two-console market | Ars Technica