I am using vivo v3 since one years and faced alot of issues while using this phone the first issue is battery issue at first battery backup is quite good after using around 5 months I have to charge 2-3 times a day , worst battery backup now come to fingerprint sensor it is quite fast but sometimes it will stop responding and a lot of hanging issue are there in this phone prossesor is quite weak I will suggest not to buy this phone beacuse you will get better phones at this price