I owned Xiaomi Redmi Note 4 4GB RAM six month back. It’s sound reception is working average in the first week but after a week it’s sound reception is not working properly and not giving me satisfaction. It is not so much user friendly almost it is not an user friendly phone. it’s style is not good but it is a slim phone and it’s design is not unique it is same as other smart phone it’s style & design feel you shame. It’s work on android operating system and it has no any other features but it’s camera is good. It’s look is really not good due to it’s screen size and it not feel you unique because of it’s look. It’s price is so high [means costly] for this type of smart phone so it has not value for this money [12, 999]. So, at last I recommend you to not buy this phone.