As we know with earlier experience this mobile is creating more problem of heat, camera is given13 megapixel back and 5 at front camera is normal, but it has some hanging problem, battery is given 4000 its good, gold colour is now became routine and it is suggested to release with new colours next, 5.5inches is better enough, screen is very good, but red mi note 4 is not good for permanent usage, updates are required. Sound system is good, it is having system which is routine as remaining red mi mobiles some Change is mandatory