The newest phone of oppo which is a oppo A57 which has upgrade version of oppo A37 . Oppo A57 is best phone but the price is very high and the specification is low . Not a good phone for all user bcoz the phone come with snapdragon 453 which has very low performance and 1.4Ghz not good really I don’t liked this . The ram of the phone is 3GB but ram is not at all bcoz main is cheap set that very low performance in oppo . Camera of A57 is good for selfy and rear camera as good with natural colour . Style and design of oppo a57 is similar to the oppo f1s but size of phone is 5.2 . A57 come with fingerprint sensor . The screen of the phone not full hd . B7t come with strong 2.5D glass. But I recommend buy redmi note 4 or moto g4 plus is my opinion .