Xiaomi always innovates something new regarding what people wants and they did the same and launch very affordable smartphone Redmi 1s smooth Ui called Miui skin on andriod 4.3.
Lag free experience super camera in this price segment front and back both taking nice click.i personally using this phone for more than a year and after updating miui 7 running better than ever its feels little bit of bulky but can be holded with no issues