The build quality and materials are quite good.
Motorola did what it could to minimize the bezels surrounding the screen, which helps keep the footprint from being monstrous. Thanks to the 5.2-inch screen, the Turbo may be too big for some people. The shape makes it comfortable to hold and use. The back surface is gently curved towards the side edges. Were it not for the microUSB port, it probably would. The bottom (which Motorola calls the "chin") almost comes to a point. The phone has a bit of a wedge shape to it it's thicker at the top than at the bottom. I like the juxtaposition between the glossy front and the matte back surface. The Turbo is available in either black or red. The texture and appearance are different between the two materials. The nylon is fractionally thicker and heavier, but honestly only a scale and set of calipers can tell the difference. Instead, the glass front is framed in polycarbonate and the edges and back surface are made from either metalized carbon fiber or ballistic nylon.
The Turbo has an entirely different outer appearance when compared to the Moto X (and Nexus 6.) It loses the aluminum frame and customizable rear shells of the X, for example. I think it's fair to say the Droid Turbo is a souped-up Moto X with more conservative design language. If battery life is your bane, then the Droid Turbo just might be your boon. It doesn't hurt that it's rather attractive and comes with some compelling Motorola extras. With a 3,900 mAh power source buried inside, the Droid Turbo outlasts most other devices on the market. The Motorola Droid Turbo is for one class of user: Those who demand the absolute best battery life.