Poor battery backup. Review on Vivo Y66

Last month dated on 8march 2017 I bought this phone for my wife .seems good looking phone .i bought it at rs 14000.i thought that it is with finger print sensor for security but there is no fingerprint sensor and using it my wife told me that it battery drains very fast.yes about camera it is good with 16 megapixels withmoonlight selfi camera . With 32 gb internal and 3gb ram.works on andriod marshmellow and copy of iphone fonts.but that is not much enough with this price .other phones with less price having much better specification rather than this phone.with dual sim you cant use memory card on slots for using memory card you have to remove one sim than only you can use memory card.these are the disadvantage which I found on this .so dont go with this phone there nothing much intresting in this phone .sad.worst to buy it.