Hi guys in this review I wanna share my opinion on cool pad mega2.5 D.my friend has buyed this phone two days before, while these the phone was all rjnning good, but after one day the ram optimaisation of phone ia very very slow.and also some apps are not stand by in this phone.my friend and I have called to coustomer sevice centre but there was no responce.the good thing was that we have returend it in flipkart.i tell to all the people that dont buy the products of coolpad .i prefer not to buy it.