Tryckkänslig platta och vibrerande axelknappar till trots lär den största skillnaden mellan handkontrollerna till Xbox One och Playstation 4 vara densamma som till nuvarande konsolgeneration; placeringen av styrspakarna.
Där handkontrollen till Xbox One har vänster styrspak placerad högre upp än den högra har Sony valt att återigen lägga styrspakarna symmetriskt. Det är knappast någon slump, menar lead engineer Mark Cerny i samtal med IGN.
"We made and tested a ridiculously broad style of controllers, and we would actually have people play games with them. And the current controller design came out of that."
"We did indeed conclude that the two joysticks on the same level works perfectly well. That did come out of our testing."
Sony bad även utvecklare om feedback.
"We sent out prototypes to major FPS creators. We looked at the top-selling titles, if they were people we could talk to, we began sending over a stream of controllers. And we would ask them things like concavity or convexity, or trigger pressure, or trigger location, or accuracy, or the like."
"It was extremely helpful to have the designers of some of the top FPSes on our controller design project."