I am an offical vivo user. I have used approximately all vivo smartphones. Initially they launched vivo v3 and v3 max but after they came to know that front camera of both these mobiles were not giving good pictures in night so they decided to launch vivo v5 series. And this phone is damm good in its camera. Secondly its weight is also very less that is 154gm.also it is faster than faster with 4gb ram. Sound receptors are also very good but they do not work good in high volumes like near DJ.its processor is also very good. Best thing in this phone is funtouch os2.5 which gives you access to your things even during screen is locked I mean when screen is dark. It also helps you to unlock your phone without touching it. Also its price is not so much.