These look like exceptionally pretty renders - I have the feeling that the final product will look nothing like that. The reason modern smartphones don't have

These look like exceptionally pretty renders - I have the feeling that the final product will look nothing like that. The reason modern smartphones don't have those sleek contours on the back is that a long-running (read: large) battery is a prerequisite. All of the swooping contours in these shots are basically trading hours of battery life for a dramatic look - I'd be surprised if this survives basic testing.