Sony Discontinues PS4 Pro and All But One Model of PS4 in Japan - IGN

Sony Japan is reportedly discontinuing all but one PS4 Slim model, and all PS4 Pro models, in order to make more PS5s.

Best PS4 Accessories to Buy in 2023 - IGN

Sony Ends Production of All but One PlayStation 4 SKU in Japan

Sony Interactive Entertainment ends production of all PS4 models

Nintendo video game consoles - Wikipedia

Sony Discontinued The PS4 Pro?

PS4 Pro no longer being manufactured in Japan, retired after 4 years

The Evolution of PlayStation Hardware - IGN

Sony reportedly closing PlayStation Store on PS3 and PSP this July

PlayStation 4 - Wikipedia

The Evolution of the PlayStation Controller