I bought the white one. The phone comes with a 5 inch touchscreen display with a resolution 1080 p by 1920p. The mi4 is powered by 2.5 ghz quad-core qualcomm snapdragon 801 processor and it come with 3gb of Ram.
The phone pack 16gb internal storage cannot be expand. Mi4 packs is 13 megapixel primary camera and 8 megapixel front shooter for shelfies. Mi4 runs android 4.4 and is powered by a 3080 mAH battary.
Its a very good phone to buy under 15k.