The redmi note4 mobile is good smartphone at lower price. camera quality is good and battery performance is good.it is lightweight and easy to use. Ram is 3GB and 64GB internal memory. both the sim are enabled with 4G Volte support great features. screen quality is good. sound quality is good compared to redmi note3. it has new features like which is MIUI8 enabled ROM.It supports Dual apps.the problem the phone gets heated up when talking very long time.