Xiaomi Redmi 4 is the best smart phone in the Redmi Phones. They give many useful features and functions. It is the best phone in category. Xiaomi Redmi 4 is the company’s latest model in the sub-Rs. 10, 000 segment. they give us many features in low range. they give us fingerprint sensor in low range any company not given.The phone runs on Android 6.0.1 Marshmallow, with Xiaomi’s MIUI 8.2 skin.You get standard set of documents, a data cable, a power adaptor, and a SIM ejector tool along with the phone itself in the retail box.