The dual-SIM enabled Oppo A11K comes with Android 9 Pie-based ColorOS 6.1. It features a 6.2-inch HD+ waterdrop display with a resolution of 720x1520 pixels, 270 PPI pixel density, and an 89 per cent screen-to-body ratio. The smartphone is powered by an octa-core MediaTek Helio P35 SoC paired with a PowerVRGE8320 GPU. The A11K packs 2GB of RAM and 32GB of internal storage, which is expandable up to 256GB via microSD card. The smartphone has a fingerprint sensor at the back and supports face unlock, as well.