I Had bought redmi Note 4 around 1 mnth ago and its so smoothly working. I am in love with its functions camera and proceesor
Sound and accessibility -
Sound quality is excellent and the stereo system is vry good it got two on its lower side whivh makes the sound more great. Earphones also workes splendid on their use. Accessibility is Nice nd touch worthy its works soomthly whrn touched finger print sensor is really fast as compared to apple or any other.
Proceesor-
It has a really good proceesor with android version 6.0.1 MMB29M and CPU octa core 2.0GhZ and MIUI version of MIUI global 8.2 which is a good choice in mobile phones
Camera-
Best camera quality u see in a phone