MI 4 mobile its a Chinese company so thats a good not a best thats mobile very high cost purchase in market 20000 the biggest price in this mobile technological its mobile use 4.4.4 KitKat Android button latest Android in technology 7.0 naugat so not a good MI Note 4 mobile in this mobile screen 5 inch IPS LCD 16 million colours and regulations HD thats a cool but not a best and very important battery backup is only just Airways not good it is mobile 3GB Ram and 16GB ROM 16GB ROM only 20000 rupees mobile thats not good very bad internal storage and thats mobile market in very high cost so not easily any one purchase first camera 13 megapixel full HD with LCD flash and selfie camera 8 megapixel camera quality of good not a best