Sony in the latest blog post on the PS5 accessories down-compatible questions to clarify, for old players, there are gains and losses.
Specifically,Although the PS4's dualshock 4 handle can be used on the ps5, it can only play those PS4 games with ps5 downward compatibility, but can't play special ps5 games.
Sony explained that the ps5 game will have some new features to release, so it is recommended to match the dual sense handle for the best experience. Some players speculated that the DS4 controller should not be unable to play the ps5 game at all, but some experience sacrifice, such as tremor, etc. of course, this has to be tested after the final launch.
As for other official and tripartite certified accessories, most of them can be compatible with ps5, including but not limited to flight remote sensing, racing steering wheel, platinum / gold headphones, etc.
Of course, Microsoft's Xbox is a lot more generous.With the exception of Kinect, almost all other accessories are compatible on the Xbox series X, and the previous generation of handles can play xsx exclusive games without pressure.