Oppo A57 is totally a worst product and a waste of money. I have bought this mobile 4 months before and after buying this I ma totally fed up.
it comes with a Qualcomm MSM8940 64-bit processor which is very not good at all and works very slow and you can get much better then this in this price range and it has a ram of 3gb which also works very slow if you are running 4 to 5 applications in the background then the mobile gets working very slow and it comes with a internal memory of 32gb and expendable up to 256gb which is good but in this price range most of mobile has that much of memory, and it comes with a camera of 13 MP rear and 5 mp front which is only the good thing in this mobile phone. it has a 5.5 inch HD display but in looks it is not that much good.
the worst thing about this mobile phone is its battery life, it comes with a battery of 2900 mAh but it is very week, if you talk on call or using your internet it immediately gets down 1 percentage and after it also takes too much of time in charging.
so if someone is planning to buy this product, I recommend you all please don’t buy this mobile phone, you can get much better option in this price range. this is totally a waste of money.