Oppo A31 (2020) smartphone was launched on 14th February 2020. The phone comes with a 6.50-inch touchscreen display with a resolution of 720x1600 pixels and an aspect ratio of 20:9.

Oppo A31 (2020) is powered by a 2.3GHz octa-core MediaTek Helio P35 (MT6765) processor. It comes with 4GB of RAM.

The Oppo A31 (2020) runs Android 9 and is powered by a 4230mAh non-removable battery.

As far as the cameras are concerned, the Oppo A31 (2020) on the rear packs a 12-megapixel primary camera with an f/1.8 aperture; a second 2-megapixel camera with an f/2.4 aperture and a pixel size of 1.75-micron and a third 2-megapixel camera with an f/2.4 aperture and a pixel size of 1.75-micron. The rear camera setup has autofocus. It sports a 8-megapixel camera on the front for selfies, with an f/2.0 aperture.

The Oppo A31 (2020) runs ColorOS 6.1 based on Android 9 and packs 128GB of inbuilt storage. The Oppo A31 (2020) is a dual-SIM smartphone that accepts Nano-SIM and Nano-SIM cards.

Connectivity options on the Oppo A31 (2020) include Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth v5.00, Micro-USB, FM radio, 3G, and 4G with active 4G on both SIM cards. Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, proximity sensor, and fingerprint sensor. The Oppo A31 (2020) supports face unlock.

The Oppo A31 (2020) measures 163.90 x 75.50 x 8.30mm (height x width x thickness) and weighs 180.00 grams. It was launched in Mystery Black and Fantasy White colours. It bears a plastic body.