Microsoft Debuts 5G Surface Duo Phone. An archived ebay listing has revealed pictures of an unreleased microsoft surface duo. Microsoft's foldable phone is back with big changes to go along with a big price. 5g, or fifth generation cellular wireless, is not only coming; There's 5g connectivity, too, and multiple cameras this time around instead . Gone is the aging processor, replaced by a current snapdragon 888. But just how does it differ from 4g? Having just launched last fall, the new surface duo 2 improves on the folding smartphone experience offered by the original with plenty of .