Well this little phone has thrown up more than a few surprises. http://m.gsmarena.com/samsung_galaxy_alpha_features_corning_gorilla_glass_4-news-10441.php So it seems the Alpha is using Gorilla Glass 4. Why Samsung aren't using that as a marketing point ? It appears it's bigger brother the Note 4 also uses GG4 Another interesting discovery lays in the fact that it's 12mp camera actually isn't a 12mp camera but is in fact a 16mp sensor (same as on the S5) but Samsung have limited it through Software. So mod/rom developers are working on rectifying that to unleash it. There is also some talk of the exynos variant actually being 64bit. Looking into that now.