Before scrapping the Surface Duo line of smartphones, Microsoft apparently designed a model with a foldable inner display, a cover screen, three rear cameras, and support for magnetic accessories like a kickstand. Here are drawings from a patent application. https://buff.ly/3XBIMNS #SurfaceDuo3 #Microsoft #Foldables
This is Microsoft's canceled Surface Duo 3 foldable smartphone

A newly filed patent gives us our first (and only) look at the design Microsoft was working on for its now canceled folding phone.

Windows Central