Xiaomi redmi 4 is the best mobile under 7000 Rupees having a operating system of you mozella Android version 6.0.1 AMD processor Octa Core and display size is 5.0 inches and the rear camera 13 megapixel and battery backup 4100 Mah and xiaomi redmi 4 is officially released on May 23 2017 when is it is a dual SIM1 is micro and SIM 2 is Nano or hybrid and four G available supports Indian bands three G available 2g available mobile. Chipset is Qualcomm Snapdragon 435 MSM 8940 space Ram is 2 GB and rom 16GB thank you.