We know perfectly well what the DualSense controller looks like for the PlayStation 5 console. But, as it turned out, the prototypes of this device were completely different.
As you can see, the early prototype was similar to the DualShock 4. Plus, it was even compatible with the PlayStation 3.
Such a controller was supplied in PS5 developer kits, where, as we well remember, the console itself looked radically different from the serial one.
Interestingly, in fact, photos of the DualSense prototype appeared on the Web last year in the pictures of the same developer kit, but no one noticed this, apparently due to the similarity with the DualShock 4.