The phone itself is really beautiful. It is super thin and gloss color is I will say is quite chic and classy. You do not even want him to put a shell so it is beautiful and imposing display. It has the latest version 4.4.2 Kit Kat. Now this performance level is not the top. Battery is average but it is reasonable we take a carefree day obviously the screen is so pixelated that it requires a lot of battery you can not have too. Away button on the phone is a disaster. In fact my old phone was a Galaxy Note 2. And I confess that when we used to use a physical button on a smartphone, you see one that returns to the home screen, so it is very difficult switching to a phone with only touch buttons built into the operating system. We must constantly watch the screen to press the button that seen does not feel the finger. Also I find it a shame because we lost some of the size of the screen that leaves room for a black line with 3 virtual buttons. In addition the button to lock the phone is the worst place for a right-handed, top left of the phone just above the 2 volume keys. So you constantly lose you there. Kind you want to add volume and you end up locking the vice versa. Samsung is right for the lock and left for the volume which is more reasonable. Oh one more thing on the quality of materials. When you shake the phone you hear the volume buttons and locking lap between the phone box. At first you're disappointed but you did you there quickly. You just have to shake it. The capacity of 8GB phone is too limited. In fact you do not even 8GB with the operating system once unpacked and turned on it only remains you that 4 GB! Fortunately, you can insert a memory card and more. The camera and video is great! The screen quality is top notch too, one of the best on the market. And the best for last, the sound quality of speakers is simply brilliant! the sound comes from the front top and bottom of the phone. It's like being at the movies. thank you soon