Xbox One Controller

I recently watched an interview with the lead designer of the Xbox One controller, and was amazed at the sheer level of detail the product was scrutinised. Every single millimetre of the controller was designed for comfort and ease of use, every cross section, the spacing between the buttons, the distance between the bumpers and the triggers, from the edge of the controller to the joysticks.

And that's not all, for the buttons were designed to give a specific feeling as they were pressed, whether it was a click, pop or thud was the question, would the joysticks have any resistance, would it have grips, if so where would the grips go, would they be more functional or more aesthetic or a combination?

So yeah, the sheer number of questions that had to be answered on the design of a controller which already had a base to work from (the Xbox 360 controller) was rather astounding.