Xiaomi 12X review: the faithful companion


Nowadays, we no longer feature the Chinese brand Xiaomi. Its arrival in France caused a stir, thanks to its ability to offer ultra-high-performance high-tech devices with a successful design at ultra-competitive prices. With the Xiaomi 12 range, the manufacturer has continued to demonstrate that it can play head-to-head with the biggest brands on the market.

The Xiaomi 12X is a separate element of this new familywho wants to be more compact than the others, but for this he has to make some sacrifices … A good idea?

Price and availability Xiaomi 12X

Xiaomi 12X is already available in France. It is sold at the recommended price of € 799.90, in three colors: black, purple and blue.


From a design standpoint, we can actually count on the Xiaomi 12X as a much thinner and smaller smartphone than most high-end ones available on the market. Its dimensions of 15.27 x 6.99 x 0.81 cm for a weight of 176 grams underline it: it is particularly pleasant in the hand, and has the effect of an object of daily use much more than a tech object, among many others.

© Citrus juicer

This aspect is also underlined by the purple color of our trial version. The latter, very pastel and soft to the eye, has its small effect. Even the plastic caseback is pleasant to the touch and guarantees not to suffer too much from the appearance of unsightly fingerprints, as well as a certain solidity … even if the high-end side is sacrificed for this.

It is also on the back that we find the characteristic photographic island of the latest generation of Xiaomi. The Xiaomi 12X integrates three sensors, the main one of which is particularly large, and two others on a growth that does not seek a single second to blend into the mass.

Quite the opposite: for better or for worse, the very thick metal rectangle stands out. Note that because of it, the smartphone is anything but stable when placed on a surface.

© Citrus juicer

In these very rounded general characteristics, the Xiaomi 12X gives the impression of being in front of a Samsung Galaxy, with the same build quality. We find on the right edge the volume button and the lock button. At the top there is a first speaker grille and the brand’s traditional infrared sensor. Finally, at the bottom we have the USB-C port, the second speaker grille and the Dual SIM hatch. The fingerprint reader is integrated directly into the screen.


The Xiaomi 12X benefits from a AMOLED panel in Full HD + definition (2400 × 1080 pixels), which is a 20: 9 aspect ratio. It is compatible with a refresh rate up to 120Hz, and is protected by Corning Gorilla Glass Victus. The panel is also HDR10 + compatible.

© Citrus juicer

Our probe indicates a very satisfactory maximum brightness of 479 cd / m², which guarantees excellent readability in direct sunlight. The “Intense” calibration mode used by default is far from being the closest to natural colors, but at least it has the merit of making the content shine. It is not unpleasant to the eye.

However, we prefer the DCI P3 mode available in the options, which allows it to have a Delta E00 of 1.59 close to what we’re trying to achieve. The screen still remains slightly too cold at 7100K, but this will only shock the most calibration enthusiast. As it stands, it is simply a great plate.


This is where the Xiaomi 12X makes its most significant sacrifice. In fact he is “only” gifted with Snapdragon 870, the high-end processor of 2021 which is very close to a wild Snapdragon 865 of 2020. We are therefore far from the last generation, even if the latter is well compatible with 5G and still offers excellent performance.

Its score of 11,746 on PCMark 10 is anything but disappointing and proves that the smartphone can accept even the latest trendy apps without batting an eye. The same goes for 3D, where 3DMark’s Wild Life benchmark gives it a score of 4,331 points for 25.90 FPS.

More concretely, you will be able to enjoy Genshin Impact at 60 FPS with the graphics pushed in High mode without too much difficulty, with some drops in the 50 FPS that will not be particularly important. The heating of the device is also well controlledunlike some devices that use Snapdragon 8 Gen 1, which is a significant plus for this smartphone.

The MIUI 13 interface might shock those accustomed to a purer Android, but the features it offers are nevertheless interesting, particularly in terms of game optimizations.


The Xiaomi 12X is equipped with a large 4500mAh battery. On the PCMark 10 autonomy test, the smartphone doesn’t give up and lasted 12 hours and 44 minutes before dropping to 13% battery. This ensures that the phone can easily last two days with mixed use and a full day for power users. It is excellent.

© Citrus juicer

Charging is another area where sacrifices have been made, however. Xiaomi 12X is only compatible with 67W fast charging, whose charger is fortunately supplied. In our tests, the smartphone went from 13 to 86% in just 30 minutes, which is once again excellent. You will not be able to count on wireless charging, which is absent.


The large main sensor of the Xiaomi 12X is a 50 megapixel wide angle. It is assisted by a 13 megapixel ultra wide angle sensor and a 5 megapixel telemacro sensor. As is often the case with these configurations … the telemacro sensor isn’t very useful in everyday life, let’s be honest.

Here, the star of the show is clearly the main 50 megapixel sensor. In broad daylight, the latter offers us very nice photos that have a nice picket, a satisfying level of detail and very well transcribed colors… even if a little too contrasted.

The great enemy of the Xiaomi 12X will be above all the lack of brightness, as is customary on mobile phones. There we lose a lot of precision and the noise is very present. Most importantly, we can see that the algorithm will tend to try to smooth and redefine its pixels, for an often somewhat rough result. However, it is a classic behavior on smartphones.

It should therefore be especially noted that if the Xiaomi 12X does not disappoint in its photographic part, he is not even a great champion of the category. The front sensor follows the same logic for the same results. As for the portrait mode, the algorithm created by Xiaomi is still just as powerful in successfully defining the contours of its targets; he still hasn’t let us down on this model.


The Xiaomi 12X has the good idea of ​​having a stereo configuration, with a first speaker at the top of the device and a second at the bottom of the same. This setup is really welcome when others have ended up ditching stereo in favor of a single mono speaker.

© Citrus juicer

No miracles, however, on such a small device. If the highs are well transcribed, the mids lack definition and the lows are absent. Nothing shocking there either, especially since the device’s maximum volume is respectable. In short, enjoy the latest YouTube and TikTok videos with ease.

Our opinion on the Xiaomi 12X

The Xiaomi 12X is a very attractive smartphone on paper. If you notice its sacrifices, they are all equally intelligent: a slightly less powerful but still premium SoC, no wireless charging and wired charging slower than the premium, but still very fast …

So many things that we will easily forgive for its small clean size, its inevitable fluidity and its ability to easily withstand most uses while maintaining excellent autonomy and controlled heating.

Xiaomi 12X

€ 799.90

Xiaomi 12X

Autonomy and recharge

8.0 / 10

Techno-price ratio

7.5 / 10

We love

  • Excellent autonomy
  • Very good screen
  • Lightweight and slim design

We love less

  • Just average photos, nothing more
  • Price a little too high


Leave a Comment