In this review it is my opinion for this phone .
It is very fast phone because it have a 4 gb ram and the other most useful thing which is it have 64 gb internal storage .
The processor choice is RN4 is the spandragone 625 . Company reps tell us this was a carefully considerd desison . While out and perfomance is small step down frome the spandagron 650 of RN3 , It is lot more efficient ( it's a 14nm soC ) and runs lot cooler even when taxed .
Bottom line its till plenty fast and you want to run into ant bottelnecks withe any kind of use.