This product of vivo was launched in april 2107.It has 5.5 hd touchscren display.It is powered by 1.5 GHz octa core mediatek mt6750 processor.it has 4 Gb of Ram.It has 64Gb of internal storage which can be expandable upto 256 GB via using micro sd card.if we talk about camera quality then we can say it is best product now available in market for selfie lovers.it has 13 megapixel primary rear camera and 20 mega pixel of front selfie shooter.It runs on android 6.0.It also have non removable 3000 mah battery. Dual sim(GSM and GSM), with micro and nano sim slot .I think this is one of the best smartphone now available in market according to their specifications and market price.