In the low-end and mid-range smartphone world, the choice often boils down to a price-to-feature tradeoff. However, when it comes to comparing two legendary flagships of the past, such as the Xiaomi Mi 9 and Xiaomi Mi 10, the user faces a more complex dilemma: These devices mark different stages in the company’s evolution: the transition from classic design to curved screens and the introduction of support for fifth-generation networks.
Many aftermarket buyers still see these models as a viable alternative to new budget-friendly models, a key difference not only in the year of release, but also in the philosophy of building a hardware platform. While the Mi 9 was the king of compactness and (price-to-price ratio) of its time, the Mi 10 set new standards for multimedia capabilities and speed.
In this article, we will take a closer look at the technical specifications, the actual performance of everyday tasks, and the quality of photography. You will have to decide whether to overpay for a fresher model or save money by taking a time-tested device. The fundamental difference is that there is optical stabilization and 90 Hz screen only in the Mi 10 model. Let's find out how critical these parameters are for you.
Design, ergonomics and build quality
Visually, the devices date back to different eras of mobile phone design. The Xiaomi Mi 9 has retained its classic rectangular shape with a flat display and minimal bezels, still considered one of the most convenient (one-handed) solutions for use, with a body made of aluminum and glass, and a characteristic antenna strip at the back that has become the hallmark of the series.
In turn, the Xiaomi Mi 10 has a fully curved screen on all four sides, known as a “waterfall”, which gives the device a premium look, but significantly complicates the installation of protective glasses and the use of cases. The dimensions of the second smartphone are much larger, and the weight is felt in the hand much stronger due to the increased battery and more massive camera module.
The build quality of both devices is at the highest level, which is typical for the flagship Mi line. However, users note that the slippery body of the Mi 10 requires the mandatory use of a case, while the Mi 9, due to its smaller size, sits in the hand more confidently.
It is worth considering that the curved edges of the Mi 10 often lead to accidental palm pressing, although the software protection against this works quite well. In the Mi 9, this problem does not exist in principle. If you appreciate the practicality and the ability to easily find protective glass in any stall, then the classic form factor will be an advantage.
Screen: technology, frequency and color reproduction
The display is the first thing the user interacts with, and here the generational difference is huge. - Xiaomi Mi 9 fitted AMOLED-Samsung's Diagonal Matrix 6.39 resolution 2340×1080 It's a great screen with bright colors and deep black, but its refresh rate is limited by standard ones. 60 Hz.
Xiaomi Mi 10 offers a more modern AMOLED panel diagonal of 6.67 inches with support for high refresh rate 90 Hz. This provides a noticeably smoother scrolling of the tape in social networks and the system interface. In addition, peak brightness is higher, which makes reading information in the sun more comfortable.
⚠️ Note: The curved edges of the screen on the Xiaomi Mi 10 can cause color distortions (green or red edges) on the sides, which is a feature of the technology and is not considered a defect.
Color reproduction on both devices is configured via the Settings menu → Screen. → Colors and contrast: Xiaomi engineers calibrate matrices close to standard DCI-P3, what's important HDR-content. HDR10+ The Mi 10 specs give it an edge when watching high-quality video streaming services.
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To conserve the resource AMOLED-Always use a dark interface theme and do not set maximum brightness on a permanent basis.
If you read a lot from your phone or work with text, the difference in hertz might not be as noticeable as in games or a browser. But once you get used to 90Hz on the Mi 10, going back to 60Hz Mi 9 will be noticeably uncomfortable. The smoothness of the animations creates the feeling of a faster device, even if the processors work the same way.
Performance: Snapdragon 855 vs. 865
The heart of the Xiaomi Mi 9 is the 7nm Snapdragon 855 chipset, which is still a very powerful processor that confidently pulls any modern application and game at high graphics settings. In the synthetic tests of AnTuTu, it scores about 450-480 thousand points.
The Xiaomi Mi 10 received the Snapdragon 865, which became a landmark for the industry thanks to the introduction of support for 5G networks and an improved ISP (image processing processor), the performance of the CPU is about 25%, and the Adreno 650 GPU is more powerful than its predecessor by 30%, in tests this smartphone already surpasses the mark of 550-600,000 points.
- 🚀 Game launch speed: Mi 10 loading heavy projects on 1-2 second-second.
- 🌡️ Thermoregulation: Mi 9 is prone to faster heating under prolonged load due to its compact body.
- ⚡ Multitasking: Both smartphones hold apps in memory perfectly, but the Mi 10 has the advantage of faster memory UFS 3.0 against UFS 2.1 (in basic versions).
For the average user, the difference in interface speed will be almost invisible. Both phones run on the shell of MIUI (or HyperOS in newer versions) very smoothly. However, if you are an avid mobile gamer and plan to play PUBG Mobile or Genshin Impact at maximum settings for a few hours, the Mi 10 will provide a more stable FPS and less trottling (reduced frequencies due to heat).
Why is the Snapdragon 865 considered a better 855?
Photo and video: camera comparison
Cameras are the area where evolution is most evident. The Xiaomi Mi 9 core module got a 48MP Sony IMX586 sensor. It was the workhorse of its time, taking good pictures in daylight but often losing detail in difficult lighting conditions.
Xiaomi Mi 10 debuted with a 108 MP Samsung HMX sensor. Huge resolution allows you to use digital zoom without severe loss of quality and cut out the desired fragments. But the main trump card was optical stabilization (OIS), which is deprived of the Mi 9. OIS is critical for night shooting and video recording.
| Characteristics | Xiaomi Mi 9 | Xiaomi Mi 10 |
|---|---|---|
| Core module | 48 MP, f/1.75 | 108 MP, f/1.69 |
| Stabilization | No (only electronic) | Optical (OIS) |
| Ultrashire | 16 MP | 13 MP |
| Macro | 12 MP (TV with zoom) | 2 MP (macro) |
Video shooting on the Mi 10 takes it to the next level with support for 8K recording (though it's more of a marketing) and stable 4K at 60 frames per second with a working stabilizer. On the Mi 9, the video often twitches when walking, as electronic stabilization can't compensate for shaking hands.
Night Mode on the big brother is faster and gives a less noisy picture. HDR processing algorithms on the Snapdragon 865 are also more advanced, allowing you to better work out shadows and light areas at the same time.
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The presence of optical stabilization (OIS) in the Xiaomi Mi 10 makes it a leader in video and night photography compared to the Mi 9.
Autonomy and charging speed
One of the weak points of the Xiaomi Mi 9 was its 3300mAh battery.For the 2019 flagship, that was very little, and by the evening of active use, many users were already looking for a socket.The Xiaomi Mi 10 received an increased battery of 4780mAh, which is almost 50% more than the capacity of its predecessor.
The difference in time per charge is huge. The Mi 10 lives a full day even when the screen is used, whereas the Mi 9 requires a lean mode or power bank, which is not only due to capacity, but also to a more energy-efficient processor and software optimization.
As for charging, both smartphones support fast charging with a capacity of 30 watts. However, the Mi 10 also supports wireless charging with a capacity of 30 watts and reverse wireless charging of 10 watts. in the Mi 9 wireless charging is absent completely.
☑️ Checking the condition of the used battery
The full charge of the Mi 10 takes about an hour, which is a great indicator for such a capacity.The presence of wireless charging adds convenience in everyday use, allowing you to simply put the phone on the base at night or in the office.
Software and relevance
Both phones originally came out on Android 9 and 10, respectively, but both received updates to Android 12 and the shell MIUI 12.5 or MIUI 13/14 depending on the region. However, the life cycle of the Mi 9 is already coming to an end, and it will likely not get the latest HyperOS with full functionality.
Xiaomi Mi 10 has a higher chance of getting security updates and major versions of Android in the future, as it is one year younger, which means a lot in the Android world. Support for 5G networks is also becoming more relevant, and although coverage in the CIS and Europe is not yet perfect everywhere, the Mi 10 has a margin for the future.
⚠️ Note: When buying a used Xiaomi Mi 10, make sure that the bootloader is unlocked. In some regions (especially the Chinese versions), there may be problems with notifications and Google services without flashing on Global. ROM.
Mi 10 users are more likely to complain about periodic interface lags in recent versions of MIUI, which is due to the fact that hardware is already struggling to cope with the growing shell code.
Final verdict: what to choose?
Choosing between the Xiaomi Mi 9 and Mi 10 depends on your budget and priorities.If you’re looking for the cheapest phone for simple tasks, calls and instant messengers, and you’re looking for a compact size, the Mi 9 may still be an option, but only at a very low price.
However, the Xiaomi Mi 10 looks a lot more rational purchase even with the higher cost: you get a significantly better screen, great autonomy, an optically stabilized camera and a performance margin for several years ahead. The price difference in the secondary market often doesn’t justify the tradeoffs you’ll have to make with the Model Nine.
In the current reality, the Mi 10 feels like a modern smartphone, while the Mi 9 is already clearly giving off its age.Investment in a newer model will pay off with the comfort of use and liquidity of the device in future resale.