Oppo K12x 5G Review: A Budget 5G Phone with Solid Features
The Oppo K12x 5G is the latest addition to Oppo’s lineup, aiming to deliver an affordable yet feature-rich 5G experience to consumers. As the demand for 5G devices continues to rise, the Oppo K12x 5G positions itself as a competitive option in the mid-range segment. In this review, we will explore various aspects of the Oppo K12x 5G, including its design, display, performance, camera, battery life, software, pricing, and availability. We’ll also weigh its pros and cons to help you decide whether it’s the right smartphone for you.
Oppo K12x Design and Build Quality
The Oppo K12x 5G boasts a sleek, modern design that is both eye-catching and functional. The phone comes in two color variants: Violet and Blue, providing users with choices that suit their personal style. Its back panel features a unique pattern that reflects light in an aesthetically pleasing manner, giving it a premium look and feel.




Build Quality and Materials: The phone’s construction is solid, featuring a sturdy plastic frame and back that mimics a glass-like finish. The sides of the device are flat, a design choice that offers a comfortable grip and adds to the phone’s overall ergonomics. Despite its large size, the Oppo K12x 5G feels surprisingly lightweight and easy to handle, thanks to its well-balanced weight distribution.
Comparison with Similar Models: When compared to similar models in its price range, such as the Xiaomi Redmi Note 11 Pro 5G and the Realme Narzo 50 Pro 5G, the Oppo K12x 5G holds its own. While competitors may offer slightly more premium materials, Oppo’s choice of a reflective pattern on the back and the flat side design make it a standout in terms of aesthetics.
Oppo K12x Display
The Oppo K12x 5G features a 6.67-inch HD+ IPS LCD with a resolution of 720 x 1600 pixels. It boasts a 120Hz refresh rate, which ensures smooth scrolling and fluid animations, enhancing the overall user experience. The screen also has a 20:9 aspect ratio, making it suitable for watching videos and playing games.

Display Performance: For multimedia consumption, the Oppo K12x 5G delivers a decent performance. The colors are vibrant, and the peak brightness of 1000 nits allows for comfortable outdoor viewing. However, the lack of a Full HD+ resolution may be noticeable to some users who are accustomed to higher-resolution displays. For gaming, the 120Hz refresh rate is a significant advantage, ensuring smoother frame rates and more responsive gameplay.
Use Case Evaluation:
- Multimedia Consumption: The display is suitable for watching videos and casual browsing. The lower resolution might be a drawback for those who prefer crisp and sharp visuals.
- Gaming: The 120Hz refresh rate improves the gaming experience by making touch interactions more responsive, although the HD+ resolution may limit the visual clarity in high-definition games.
Oppo K12x Performance
The Oppo K12x 5G is powered by a MediaTek Dimensity 6300 chipset, built on a 6nm fabrication process. This octa-core processor clocks up to 2.4 GHz and is paired with a Mali-G57 GPU, offering a balanced mix of power and efficiency.
RAM and Storage: The phone comes in two variants: 6GB RAM + 128GB storage and 8GB RAM + 256GB storage, both supporting UFS 2.1 storage for faster read/write speeds. Additionally, it offers up to 4GB of virtual RAM, further enhancing multitasking capabilities.
Benchmarks and Real-World Usage: In synthetic benchmarks like Geekbench and AnTuTu, the Oppo K12x 5G scores respectably, positioning itself well against competitors in the mid-range segment. Real-world usage scenarios, such as multitasking, app switching, and moderate gaming, are handled smoothly without noticeable lag or stutter.
Benchmark | Score |
---|---|
AnTuTu | 350,000 |
Geekbench (Single) | 550 |
Geekbench (Multi) | 1,800 |
Oppo K12x Camera
The Oppo K12x 5G is equipped with a dual-camera setup on the rear, featuring a 32MP primary sensor that delivers good image quality under various lighting conditions. It also supports up to 10x digital zoom, which can be handy for distant shots, although some loss in clarity is expected at higher zoom levels.
Camera Modes and Features: The camera app offers a variety of modes, including Pro Mode, Portrait, Night Mode, High Resolution, Panorama, Slow Motion, Time Lapse, Dual-View Video, Stickers, and Text Scanner. The 8MP front camera does a decent job of capturing selfies, with an emphasis on natural skin tones and a moderate level of detail.
Camera Performance:
- Daylight Shots: Photos taken in daylight are crisp and vibrant, with good dynamic range and color reproduction.
- Low-Light Performance: The Night Mode helps in low-light situations, but there is still some noise present in the images.
- Video Recording: The device supports full HD video recording at both 30fps and 60fps, which is rare in this price segment.
Oppo K12x Battery Life
The Oppo K12x 5G packs a 5100mAh battery, which is a significant advantage for a phone in this segment. The battery life is commendable, easily lasting a full day of moderate to heavy use, including gaming, streaming, and browsing.
Charging Options: The 45W Super VOOC fast charger included in the box can charge the phone from 0 to 50% in just 30 minutes, which is highly convenient for users who are always on the go. The fast charging capability ensures that you spend less time tethered to a power outlet and more time using the phone.
Battery Performance: In typical usage scenarios, including calls, social media, and occasional gaming, the Oppo K12x 5G can comfortably last up to a day and a half on a single charge. Heavy users might need to charge it more frequently, but the fast charger compensates for this.
Software and Features
The Oppo K12x 5G runs on ColorOS 14.0, based on Android 11. The user interface is clean, responsive, and customizable, with several features that enhance user convenience.
Unique Software Aspects:
- Customization Options: Users can personalize their home screen, themes, and icons, adding a touch of individuality to their devices.
- Enhanced Privacy Features: The phone offers robust privacy settings, such as app lock, private safe, and system cloner, providing an extra layer of security.
- Bloatware: While the UI is generally smooth, it does come with some pre-installed apps and games, which can be uninstalled if not needed.
Oppo K12x Pricing and Availability
The Oppo K12x 5G is competitively priced to attract budget-conscious buyers. Here’s a breakdown of its pricing:
- 6GB RAM + 128GB Storage: ₹12,999
- 8GB RAM + 256GB Storage: Higher price (varies with discounts)
Availability: The Oppo K12x 5G is available on major online platforms like Amazon, and it is also sold through Oppo’s official website and offline retail stores. Seasonal discounts and offers, such as those during the Big Billion Days sale, can make this smartphone even more affordable.
Pros and Cons
Pros:
- Affordable pricing with good value for money
- 120Hz refresh rate for smoother performance
- Strong battery life with 45W fast charging
- Decent camera quality with various modes
- Expandable storage up to 1TB
Cons:
- Lacks Full HD+ display; only HD+ resolution
- Camera megapixel count could be higher
- Comes with some pre-installed bloatware
- Processor, while adequate, is not the best in class
Conclusion and Recommendation
The Oppo K12x 5G is a solid offering in the budget 5G smartphone segment. With its appealing design, strong battery life, and 120Hz refresh rate display, it provides a well-rounded experience for users who need a capable device without breaking the bank. While there are areas for improvement, such as the display resolution and camera specifications, these shortcomings are balanced by its pricing and features.
Recommendation: If you are looking for a budget-friendly 5G smartphone with decent performance, a high refresh rate display, and fast charging, the Oppo K12x 5G is worth considering. However, if a higher resolution display and top-tier camera performance are your top priorities, you may want to explore other options in a slightly higher price bracket.