The 3DS sold 10 million units between the time the Switch came out to it's discontinuation. I don't think the PS4 will be able to do that, which is crazy to think about. Right now the PS4 has 1.4 million after PS5's release, and that was during the holiday season. For comparison the 3DS's holiday in 2017 the year the Switch came out it did 3 million.







