Realme C12 smartphone was launched on 14th August 2020. The phone comes with a 6.50-inch touchscreen display with a resolution of 720x1600 pixels and an aspect ratio of 20:9. Realme C12 is powered by an octa-core MediaTek Helio G35 processor. It comes with 3GB of RAM. The Realme C12 runs Android 10 and is powered by a 6000mAh non-removable battery.

As far as the cameras are concerned, the Realme C12 on the rear packs a 13-megapixel primary camera with an f/2.2 aperture; a second 2-megapixel camera with an f/2.4 aperture and a third 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It sports a 5-megapixel camera on the front for selfies, with an f/2.0 aperture.

The Realme C12 runs Realme UI based on Android 10 and packs 32GB of inbuilt storage that can be expanded via microSD card (up to 256GB) with a dedicated slot. The Realme C12 is a dual-SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM cards. The Realme C12 measures 164.50 x 75.90 x 9.80mm (height x width x thickness) and weighs 209.00 grams. It was launched in Power Blue and Power Silver colours.

Connectivity options on the Realme C12 include Wi-Fi 802.11 b/g/n, GPS, Bluetooth v5.00, Micro-USB, 3G, and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, proximity sensor, and fingerprint sensor. The Realme C12 supports face unlock.