OnePlus X has solid build quality. It has top notch premium design unlike oneplus has done never before. As it has 5 inch screen we will get excellent hand feel, can operate mobile with single hand unlike 5.5 and 6inch mobiles.It has one of the sharp and bright display with 1920*1080 resolution.Its own developed OS oxygen UI is near stock android.It gives you around one and half day battery backup for moderate use.Camera has zero shutter lag.Ram 3GB.CONS: The glass on the back is more prone to break, so putting back cover is necessary. Oneplus has placed out dated processor Qualcomm 2.3GHz 801 in this phone. Finally if you need inexpensive solid build quality mobile go for it.