Realme used to be a subsidiary of Oppo until it branched out independently in 2018. Both phone brands are renowned for their mid-range devices. In 2020, both introduced competitive models in the affordable price range—Realme with C11 and Oppo with A12. Currently, Oppo A12 (3GB/32GB) is priced at 2,550,000 VND, whereas Realme C11 3GB/32GB variant is available at 2,990,000 VND
Let's delve into the quality comparison of these two smartphones.
Comparing the Overall Technical Specifications of Oppo A12 and Realme C11
Thông số | Oppo A12 | Realme C11 |
Kích thước | 155.9 x 75.5 x 8.3 mm, 165g | 164.4 x 75.9 x 9.1 mm, 196 g |
Màn hình | IPS LCD 6.22 inches, 720 x 1520 pixels. | IPS LCD 6.5 inches, 720 x 1560 pixels |
Camera trước | 5MP | 5MP |
Camera sau | 13MP + 2MP | 13MP + 2MP |
Chipset | Helio P35 | Helio G35 |
Dung lượng | 3GB / 32GB | 3GB / 32GB |
Hệ điều hành | Android 9.0 (Pie), ColorOS 6.1 | Android 10, Realme UI |
Dung lượng pin | 4230 mAh | 5000 mAh |

Comparing the Designs of Oppo A12 and Realme C11
In terms of build quality, both these phones feature a plastic back and frame with meticulous assembly, ensuring durability. The hand feel is solid and comfortable.
Oppo A12 is smaller in size and lighter compared to its Realme counterpart. So, your choice might hinge on whether you prefer a conveniently sized phone like the Oppo A12 for portability or a larger device like the Realme C11 for a more expansive user experience.
A significant difference lies in the rear design. Oppo A12 boasts a unique diamond-patterned design, horizontally aligned dual cameras, and a waterdrop-notch display. In contrast, Realme C11 features a more modern design with square-shaped dual rear cameras, a waterdrop-notch display, and a straight line across the camera module with the Realme logo, adding a trendy touch.
Comparing the Displays of Oppo A12 and Realme C11
Oppo A12 and Realme C11 both sport IPS LCD displays. The display quality of both devices is comparable, with Oppo at 720 x 1520 pixels and Realme C11 slightly edging ahead at 720 x 1560 pixels. Consequently, both screens deliver a stable and vibrant visual experience with good color reproduction and detail.
The most significant difference lies in the screen size. With the advantage of a larger size, Realme C11's screen offers a more comfortable space for users, especially when gaming or watching videos.

Comparing the Cameras of Oppo A12 and Realme C11
The camera setup of these two phones is identical, featuring a dual rear camera of 13MP + 2MP, along with a 5MP front-facing selfie camera. Consequently, the image quality provided by these phones is equivalent. With this camera configuration, users should not expect too much, as it is suitable for basic photography, offering decent but not overly sharp images with limited additional features.
Comparing the Performance of Oppo A12 and Realme C11
Oppo A12 is equipped with the Helio P35 (12nm) chipset, while Realme C11 features the Helio G35, both from MediaTek. Both chips deliver average performance with minimal differences. In terms of memory capacity, both smartphone variants come with 3GB RAM and 32GB internal storage.
However, Realme's operating system is better optimized with Android 10 compared to Oppo A12's Android 9.

Comparing the Battery Life of Oppo A12 and Realme C11
Here, the Realme C11 boasts a much larger 5000mAh battery compared to the Oppo A12, equipped with a 4230mAh battery. Both phones support only standard 10W charging.
Should You Buy Oppo A12 or Realme C11?
Based on these comparisons, the Realme C11 outshines the Oppo A12 in various aspects, including design, display quality, performance, and battery life. Therefore, we recommend considering the Realme C11 over the Oppo A12.