It’s really interesting, and a rare opportunity, to see these early prototypes for the Xbox One console and controller. Polygon.com has an interesting article on this with some quotes an images from the Worldwide Partner Conference 2013.
“We wanted to make it simple and elegant, and we wanted it to be crafted and tailored, so it’s all about quality,” Ledbetter said. “Using those principles, we started to design.”
Ledbetter also said that Microsoft created over 200 prototypes for the Xbox One controller, which were also printed out in-house. “We found that, when people put these in their hands, could tell the difference between a 10th of a millimeter in size,” he said.