The Oppo A57 4G features a waterdrop notch design with noticeable bezels and a side-mounted fingerprint reader. On the rear, it houses dual cameras with an LED flash. It flaunts a 6.56-inch HD+ (720×1612 pixels) LCD panel with a 20:9 aspect ratio.
In terms of optics, the Oppo A57 4G sports dual rear cameras, comprising a 13MP (f/2.2) primary shooter and a 2MP (f/2.4) depth sensor. On the front, it sports an 8MP (f/2.0) selfie shooter.
Under the hood, Oppo A57 4G is powered by a MediaTek Helio G35 SoC, paired with up to 4GB of RAM and 64GB of storage. It also gets virtual RAM support. The device boots Android 12-based ColorOS 12.1 and draws power from a 5,000mAh battery which offers 33W fast-charging.