The redmi note 4 works like a charm.it has some of the best features like tv remote, fingerprint sensor and awesome 13 mp camera.the phone got a slim design and great looks.this phone have all the basic sensor like gyro and light.using it from 2 months and no lag and crash.the phone have android marshmallow 6.0 but can be upgraded to nought 7.0.i also tried playing so many games like asphalt 8, modern combat 5 and versus and still no lag.this phone is best at this price range of 13000.this phone also comes in 3 varients like 2gb ram, 3gb ram and 4gb.2gb and 3gb ram varients have 32gb internal storage while 4gb ram has 64gb internal storage.