The Yuphoria is mostly made from plastic and the metal is only a trim that runs along its edges. Unlike the Lumia 830, the corners are rounded off smoothly on the Yuphoria. The top and bottom edges of the Yuphoria have strips of plastic in between the metal where the 3.5mm audio jack ( top) and Micro-USB port ( bottom) are placed. We are not fans of this design because it is quite distracting.The right edge has the power button wedged in between two volume buttons, which are slightly raised. This arrangement takes a little getting used to but since the power button is shallower and longer it is easy enough to feel for it while using the phone.