When inventory of the original sells out, you'll only be able to find the Slim. The Slim model doesn't upgrade any of the core specs like processor or RAM, though it does come with a bit of extra storage; the original PS5 came with 825 GB of internal storage, while the PS5 Slim bumps that to a full 1 TB.The DualSense looks like what would happen if the DualShock 4 and Xbox One controllers had a baby. Instead of the curved design of its predecessors, especially the DualShock 4, the DualSense has more corners and is more angular.