BLU Blends both design and technology aspects to create a state of the art smartphone. With metal battery cover paired with curved glass display, the Advance 5.2 HD provides the user an experience like no other. The Advance 5.2 HD utilizes state of the art material such as aluminum on the battery cover which provides structural integrity, while also raising the bar on the aesthetic quality. Pushing the design to a higher level that few succeed in.