Portable ultra thin and light compared to my old cell phone (iPhone 4S) Design sympathetic although the back is more or less rigid plastic. The size makes using this smartphone very nice! The rendering of the videos is good, and photos. Very useful, it can change the definition of pictures according to lighting and so moving! The pages open quickly, and web content load quickly. The use of "air" function is really original and useful because through it you can scroll through web pages eye movement or placing the hand over the screen! It also works when wearing gloves, no need to remove when you want utilser smartphone in winter ...