Like the Galaxy S6, the Note 5 has straight sides and a flat face, but then it does something interesting. It adds the Edge+'s frontal curves to the back of this phone. From what I can tell holding them side-by-side, the curves look the same. Checking out its profile, these comfortable rear arcs cause the Note 5's top and bottom edges to flare out thicker than its middle. It'll still fill your hand -- this is a large device -- but the overall sensation is still of slimness, especially compared to the relatively bulky Note 4.