I purchase samsung j-series thatis j5 one years ago and I find that it is working very smoothy and fast.It is the best mobile phone for taking selfie as it comprise 5mp camera with flash light yo take photo in night also.I have used it very roughly like downloading many apps and videos frequently , watching videos on youtube but still my phome’s speed never slow down as it comprise1.5gb ram. In this phone I find best graphics to play many games smoothly without getting stopped.So if anyone wants to purchase new mobile phone and if you are looking a good mobile phone, for them I suggest that they must once think about purchasing j5.