Redmi 3s prime is the most popular mobile phone having fully loaded with features. I have took experience of this mobile. I am very satisfied with this mobile. None of the any other company provide as like 3s prime mobile which having high features. And price of 3s prime is very very low as compare to its specification. We can purchase that mobile online from amazon or flipcart. It is having 3gb ram cuases that is speed is very fast. Also it having 32gb internal memory hence there is no need to insert external memory.