Why Xiaomi smartphones have bad cameras: myths and reality

It’s hard to deny that Xiaomi has taken over the global smartphone market by offering users an incredible value for money. However, there are many negative reviews online complaining about mediocre image quality, especially compared to rivals from the Samsung or Apple camp. Why is this happening when the sensors look more than impressive on paper?

Many users, when they first encounter MIUI or HyperOS, notice that even top-end models sometimes produce images that they want to delete immediately. Problems with image processing algorithms often negate the benefits of expensive optics. In this article, we will examine in detail the technical and software reasons that make it possible to talk about “bad cameras” in the Chinese giant’s devices.

It's important to understand that the situation is patchy: while some models suffer from aggressive noise cancellation, others sin unnatural color reproduction. Software optimization plays a key role here, and often it is the software that is the narrow neck of the entire photo system. Let's dive into the details to see whether to blame the hardware or look deeper.

Aggressive algorithmic processing and noise reduction

One of the main reasons for users’ frustration is the overly aggressive work of Noise Reduction algorithms. In an effort to make a picture as clean as possible even in low light, Xiaomi software often “blurns” details. Instead of fine grain (noise), which looks natural, you get the effect of watercolor paint, where the textures of skin or fabric turn into a homogeneous stain.

This problem is particularly noticeable in the budget and mid-budget segments, where the processing power of the processor is limited. ISP-The image signal processor doesn't have time to process the data stream properly, and the system uses rough filters to smooth out artifacts, making the photo look unnaturally smooth, losing microcontrast and sharpness on small objects.

And algorithms often misunderstand the boundaries of objects by creating what are called halo artifacts, which is especially evident in contrast-light images where dark objects are on a light background. Aggressive border smoothing is a software attempt to hide the lack of dynamic range of the sensor, but it only worsens the perception of the frame in the end.

⚠️ Attention: Excessive noise cancellation cannot be corrected by post-processing. If you notice porridge in the photo immediately after shooting, it will be extremely difficult to restore textures even in professional editors.

It’s also worth noting that the processing level can vary dramatically from one mode to another, and in automatic mode, the camera tries to please everyone by applying heavy filters on the fly, whereas in manual mode, the results can be much cleaner but require skill.

Problems of balancing white and color reproduction

A second common complaint is unnatural color reproduction, where Xiaomi cameras often fall into cold, bluish shades, especially in artificial lighting, due to errors in the automatic white balance (AWB) algorithms that misread the temperature of light in complex scenes.

Users often point out that the skin in portraits looks pale or grayish, and the green grass takes on an unnatural, acidic hue. The oversaturation of colors is a conscious strategy of the company to make the photos look bright on the smartphone screen immediately after shooting, without the need for editing. However, when viewed on a large monitor or when printing, such pictures are often disappointing in their unnaturalness.

Making matters worse, the algorithms can work differently even within the same model after the firmware update, and today the photo is warm and pleasant, and tomorrow, after receiving it, the image is still very different. OTA-The same scene is shot with a distinct blue slant, which creates a sense of instability and unpredictability.

To remedy this, power users often resort to using third-party apps or manual settings, but for the mass user, this is a barrier. The point-and-shoot wait is broken down into the reality of constant tweaking of parameters.

Instability of HDR and dynamic range

HDR (High Dynamic Range) technology is designed to expand dynamic range, keeping details in both light and dark areas of the frame. In Xiaomi smartphones, this feature is often criticized for incorrectly combining several frames with different exposures. Instead of a harmonious image, the user can get a picture with unnatural transitions between light and shadow.

Often, the problem is that the sky in a photograph becomes unnaturally dark or completely white while the rest of the frame looks normal. Blending algorithms can work slowly, resulting in a "double" of objects if you or the subject was moving at the time of the photograph.

In difficult light conditions, such as shooting against the sun or in a room with a window, the camera can become completely confused, either overexpose the person’s face, making it too light, or underexpose the background, turning it into a black spot. This indicates that computational photography in Xiaomi software is still inferior to the decisions of competitors in terms of intelligent scene analysis.

This is especially critical for video, where dynamic HDR works even less steadily, causing noticeable jumps in brightness and color when panning the camera.

Quality of optics and stabilization in the budget segment

In the pursuit of high megapixel numbers in marketing materials, Xiaomi often saves on the quality of the optics and stabilization system in inexpensive models. Having a 108 megapixel sensor does not guarantee a good shot if the lens has low sharpness at the edges of the frame and high chromatic aberration.

Optical stabilization (OIS) is not present in all models, even in the mid-range, and its lack or poor implementation quality leads to blurred handheld shots, especially in the evening. Mechanical stabilization compensates for hand tremors, allowing longer exposure without losing sharpness, which is not the case for many public sector employees.

In addition, the additional cameras (macro, depth sensor) in Xiaomi smartphones are often decorative. 2 MP sensors are not able to give a high-quality picture, and their presence in the camera block creates a false impression about the multimedia capabilities of the device.

The user should carefully examine not only the number of megapixels, but also the presence of optical stabilization and the quality of lenses, which are often not indicated in advertising brochures.

Comparison of Xiaomi algorithms with competitors

To understand the scale of the problem, compare Xiaomi’s images to photos taken on a Samsung Galaxy or Google Pixel in the same environment. The Korean giant is betting on brighter but more natural colors and better performance with dynamic range. Google, in turn, is famous for its machine learning algorithms that work wonders even with simple sensors.

Computational photography in Xiaomi devices often seems "raw." Where the Pixel uses AI to restore details in the shadows, Xiaomi simply lightens them by creating a grey plaque.Where Samsung neatly blurs the background, Xiaomi can miscontour the hair, creating an unnatural cut of the object.

The difference is particularly noticeable in Night Mode. Competitors are good at keeping the night atmosphere alive, leaving deep black where it should be and highlighting only important details. Xiaomi cameras often turn night into day, removing shadows and making the shot flat and non-atmospheric.

This is not to say that Xiaomi can’t make good cameras – their flagship lineups (Ultra, Pro) often occupy the top spot in the rankings of DxOMark. However, in the mass segment, the gap with the leaders of the industry is still noticeable at the level of software processing.

The impact of regional firmware on photo quality

Interestingly, the quality of the photos may vary depending on the firmware installed: Global, China or EEA (Europe), Chinese firmware versions often have less aggressive noise reduction algorithms and more saturated colors, as they are focused on the tastes of the local market and social networks.

Global versions (Global) are certified and conform to common standards, sometimes resulting in poor processing for compliance or optimisation in different environments. Users who reflash their devices to the Chinese version of the software often notice improvements in detail and camera speed.

But changing the firmware region is a complex process that can lead to loss of warranty and problems with some of Google’s banking apps or services, so it’s not a panacea for the average user, but it explains why two identical models can look different in different people’s hands.

⚠️ Warning: Flashing your smartphone to another regional version (e.g., from Global to China) may result in the device being blocked by the manufacturer if official procedures for unlocking the bootloader are not followed.

It is also worth considering that security updates and camera patches come with different frequency for different regions, which creates a situation of inequality among owners of the same gadgets.

Third-party software capabilities and manual settings

Not all is lost for Xiaomi smartphone owners. Often, the built-in Camera app just doesn't unlock the device's potential. Using third-party apps like Google Camera (GCam) can make a difference. Google Camera ports often work wonders by embedding the best processing algorithms from the Pixel into Xiaomi's hardware.

Installing GCam requires finding the right version for a particular CPU and sensor model, but the result is worth it: improved dynamic range, more natural HDR, better portrait mode and night shooting, this is the best way to "fix" Xiaomi camera software methods.

Also, don't ignore the Pro mode in the built-in app, which allows you to manually set ISO, shutter speed, white balance and focus. In difficult environments where automation is wrong, manually set up a workable result that can be refined in the editor.

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Try installing a modified version of Google Camera (GCam) tailored specifically for your Snapdragon processor model, which often yields a 30-40% improvement in quality.

For video lovers, there are also apps that allow you to shoot in LOG or high bitrate format, which gives more opportunities for color correction in post-processing, although the built-in video editor Xiaomi leaves much to be desired.

FAQ: Frequently Asked Questions

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The main reason for bad photos on Xiaomi is not bad hardware, but aggressive and not always high-quality algorithms of software processing, especially in the budget segment.