Lackig of the phone is totally no even I have run high ghraphuc game and large size apps but little bit heatin of the device upto 30 º which is common to all phone the ram which will be free upto 2. Something gb whuch is the great plus point for the phone under 9000.talking about the camera we can get 13.1mp rear or back camera and 5mp front camera the photo is good but not awesome like zenphone . Battery backup is little bit ok only 3000mh battery give working 6-7 hrs but it good enought accordin to the diaply