Accustomed high-end, having been tested and the iPhone 5s, Galaxy Note 3, Galaxy s5, htc one m8, nokia lumia 930. I was looking for a smartphone with a "behavior" upscale but at half price, (j ' wiko had the rainbow, cool but I have some doubt still ...). I think I found the perfect smartphone! Already the perfect size: barely larger than an iPhone 5s but with an equivalent screen htc one !! That alone makes a huge difference (in lighter it is!), The screen quality without full hd is perfect (by sunlight against ...) at performance everything is fluid, optimization is perfect, the behavior is really upmarket! (For me it is at this level that there is a difference with types Wiko model, although it is true that they are twice the price!), The speaker sound is powerful, photos and videos are good quality (especially outdoors, like most smartphones!), autonomy takes into day without problem even with sustained use (1 hour video on the train, SMS, Internet ...), the voice function " Google now "works very well and is very convenient, the notification system on the standby screen is just great, you take it in hand and as you see if you have received a call, SMS etc ... much more convenient that an LED notification !! I received it with the latest version of android 4.4 kit kat and is already assured of the latest version "L" !! For points negative no possibility of removing the battery, no memory expansion (personally it bother me, 16 gb enough for me, for my music anything replace my iPod touch, and its port is compatible otg therefore possible connected USB drive via a cable, I tested!) if not really that good, I highly recommend !!