Hi I am rajendra I am talking about vivo y21.This mobile feature is so good.has internal memory 8 gb and also available sd slot.The phone is dual sime supported with 4g network.The phone display is 4.5. And has body is totally plastic.This vivo phone also supported dual camera and has back result is such a good.has body design is very nice and this phone is available in 3 colours.This phone in very smary feature.u can open any app just type on lock screen app first chartecter and u want direct open the app.has price also very nice 6500 only.i love this phone