I am using this phone since 1months.I bought this phone in 2nd flash sale of amazon.i have this phone in dark gery colour and this phone is available in two more colour that is rose gold and gold but rose gold is not avaible in india foe some weird reasons but although this phone perform very well as it comes under only 5, 999 price range
About physical appereance this phone not build up of metal body but it feels like because it is made up of polycarbonate plastic and it is comes with 5inch screen which fully hd display.
About performace specs this phone contains 2gb ram with 16gb internal memory( its expandable upto 128gb but only if you allow one sim to be removed which is sad part ??) and also have the chipset of 1.4ghz snapdragon 425 quad core processor and also it have many sensors like auto brightness, compass and many more 4g volte is also enabled in this budget killer phone
In my opinion this kind of secondary phone for those person who have phone like iphone, s7and they are thinking of one more supportive than they go for this MI redmi 4a??.