The Zenfone 4 is pretty small by today’s standards, which means it’s very easy to hold and use. It’s very slightly shorter and wider than an iPhone 5, but quite a bit thicker. The bulging back in fact makes it more comfortable in the hand.
Our Zenfone 4 test unit came with a striking satiny blue rear panel, though black, white and red are also available. It’s a high-quality finish, but we really wonder why Asus printed its own logo in red, right beneath the camera lens and speaker grille. There are also prominent white Intel Inside and Zenfone logos on the bottom rear.