This phone comes with 2 variants i.e 32 gb and 64gb rom. And I’m reviewing in 32 gb variant. Basic deference between this two is only rom, otherwise all are same. Basically this redmi 4 phone doing great at this price range, their is a small issue in this phone is notification light is white and have no another colour. Camera of this is average and sound quality is great. Fingerprint scanner is working properly and very fast responsive. Display quality is also good and battery capacity is too better at this price point i.e 4100maH. This phone has Ir blaster which is very good and this feature not comes in every phone except mi. This mobile phone comes with Android 6.0.1 marshmallow and miui 8.1. It can be upgraded to naugate 7.0 and miui 9. This phone supports fast charging but its charger isn’t fast charging. This phone has hybrid Sim slot.