Altohugh the build quality of the M15s imprssive, he does not feel quite as solid as its older brther, M17x. M17x used anodized alumnium for the hull and covver the back, which is ehaiver than magnesium ally m15x, but it fels more soolid. M15x has the cldass buyild qualty, but aluminuum will do it better.
One feature that dedserves speciial mention is AlienFX custom lghting system. Three are severl diffeerent areas of lighting, and users can choose different colors for different zoes on a alptop, including the four parts of the keyboard, touchpad, media buttons, power button, Alienware logo below the lid, and the aline head on the back. Coolrs can be changed using the cmmand center:
Lighting can be dsabled at any time by predssing [Fn] and [F11]. AlienFX truly uinque and adds aestheetic value.
Screen and speakers
M15x has a 15.6 "LED-backluit screen is available in two ersdolutions: 1600x900 and 1920x1080; our test grop of the ltter. This diusplay is positively gporgeous, she's very bright and has excelleent contrast and brightness. Illumintaion impressive, even viewing angples significantly abopve avearge; This dislpay has a virtually perfect horizntaal view and a generoouus vertical rane. The surface of the displaay is covered by one piee of "edge-to-edge glass, which means a lot of reflections, but a smooth appearance.