Oppo A11s mobile was launched in December 2021. The phone comes with a 6.50-inch touchscreen display with a resolution of 720x1600 pixels and an aspect ratio of 20:9. Oppo A11s is powered by an octa-core Qualcomm Snapdragon 460 processor. It comes with 4GB of RAM. The Oppo A11s runs Android 10 and is powered by a 5000mAh battery.

As far as the cameras are concerned, the Oppo A11s on the rear packs a triple camera setup featuring a 13-megapixel primary camera with an 2.2-micron aperture; a 2-megapixel camera with an f/2.4 aperture, and a 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring an 8-megapixel sensor with an f/2.0 aperture.

The Oppo A11s runs ColorOS 7.2 is based on Android 10 and packs 128GB of inbuilt storage. The Oppo A11s is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and Nano-SIM cards. The Oppo A11s measures 163.90 x 75.10 x 8.40mm (height x width x thickness) and weighs 186.00 grams. It was launched in Dream White and Matte Black colours.

Connectivity options on the Oppo A11s include Wi-Fi 802.11 a/b/g/n/ac/ax, GPS, Bluetooth v5.00, USB Type-C, 3G, and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include accelerometer, ambient light sensor, proximity sensor, and fingerprint sensor.