Selfie-oriented Oppo A57 resides in the budget bracket of $234, but borrows some of the most enticing features of the more powerful Oppo F1s. While the latter proved to be a very capable selfie smartphone, it is time to dissect what Oppo A57 can do.

Starting with the build, there is very little difference between F1s and A57 since both sport a metal frame. Both models sport a capacitive button although A57 lacks the backlit feature of its sister.

There is a pre-applied screen guard although this could be an overkill since all current-gen Oppos feature Gorilla Glass 4, including the Oppo A57. The 5.2-inch IPS display sports an HD resolution that is fairly legible and sharp on certain angles, Gadgets360 said.

Oppo A57 adopts the features of most Asian-based Android manufacturers where there are two trays for nano SIM plus a dedicated microSD port that can accommodate as massive as 256GB. As opposed to other phones, two SIM ports can be used simultaneously without ditching the microSD.

The Oppo A57 is powered by Snapdragon 435 which is at par with the mainstream MediaTek MT6750 in terms of performance and benchmark results. The eight-core chip was complimented with a 3GB of RAM and internal storage of 32GB. To complete the impressive specs, Oppo A57 runs on custom ColourOS 3.0 which is a derivative of Android 6.0 Marshmallow.

The A57 also boasts of a 16mp front camera and 13mp rear shooter. There is a downside in this sub-premium model once pictures are taken under low-light situations. While sharp and detailed photos can be achieved in excellent lighting, the result could be grainy in dimly-lit areas. The poor flash doesn't help either.

Overall, budget-conscious users have a good chance of mimicking the performance of premium F1s with the Oppo A57. While dual-band Wi-Fi and backlit buttons are missing, Android Marshmallow 6.0 made up for the loss since F1s sport the older Lollipop OS.