Just purchased one x and it is the best mobile phone i have ever used it responds fluently and bcoz of tegra 3 and quad core it gives very smooth results. i was amazed to see this phone, i have used many phones like SII, N8, iPhone (4S, 4, 3S), etc but it has got best display and color quality in all of them. i am not able to see a pixel even with a magnifying glass ! it had very smooth and firm back. I have my one x in white color first it was in my mind that white would catch dirt easily and get black but i have tested it and no dirty spots are present..i would surely and strongly RECOMMEND this phone without a doubt instead of Note, Nexus, SII, iPhone 4S , etc.