The Xiaomi MIX 4 selfie is really a flop by the phone 5 years ago

Borg SEP 02,2021

Recently, the cell phone circle is very lively, many cell phone manufacturers have released their new products, and in these new models, to "under the screen camera" as the main selling point of the Xiaomi MIX 4 undoubtedly has a very high degree of attention.

About the under-screen phone, in fact, we are not unfamiliar with it. As early as 2020, ZTE released the world's first mass-produced under-screen camera phone, even just a few days before the Xiaomi MIX 4, ZTE also brought the technology iteration of the new machine - ZTE Axon30 under-screen version, although the positioning of the two models are different, but because of the consistent screen shape and attention, incidentally, once again ignited the The two models are positioned differently, but are attracting a lot of attention due to the same screen form factor, which incidentally has once again ignited the heat on the topic of under-screen cameras.

Back to the Xiaomi MIX4 itself, the phone has been on sale for some time, the first batch of user feedback on the machine has also been released, from the evaluation of everyone, most users for the Xiaomi MIX 4 still holds a satisfactory attitude, of course, there is no shortage of negative comments, and unsurprisingly, most of them are also related to the Xiaomi MIX 4 selfie, so the question is, Xiaomi MIX 4 selfie is really very good. The MIX 4's selfies are really bad? Why are the selfies of off-screen phones not so good?

1, self-timer test session, Xiaomi MIX 4 was beaten

Let's answer the first question - how is the selfie of Xiaomi MIX 4? In order to verify the doubts in your mind, we specially found Xiaomi MIX 4, Xiaomi 11 and a 5-year-old phone Xiaomi 5s together for this selfie test, through the sample comparison to find out.

Of course, before the test begins, let's take a look at the front camera configuration of each model.

from left to right Xiaomi 11, Xiaomi MIX 4, Xiaomi 5s

Xiaomi MIX 4 is equipped with a 20-megapixel under-screen camera, supporting pixel four-in-one technology and adding AI image algorithm to optimize the selfie effect; Xiaomi 11 is also familiar to everyone, the Xiaomi flagship released earlier this year, with a 20-megapixel camera on the front, also supporting the latest AI beauty algorithm.

Xiaomi 5s

As for the Xiaomi 5s, this model is indeed some years old, and at that time it still seemed to be a very good selfie model, its front camera pixel size reached 2 microns, almost double the pixel size of ordinary front cameras. Of course, compared to the current Xiaomi flagships is much worse, the front camera is only 4 megapixels, and the system version is still stuck in MIUI 10, some of the latest beauty algorithms are also not available.

If you look at the configuration alone, the Xiaomi 5s is obviously weaker, but the real shooting effect is necessarily weaker than the Xiaomi MIX 4? Probably not necessarily. So, let's go straight to the sample session, the first is the Xiaomi 11 and Xiaomi MIX 4 comparison.

Xiaomi 11 (left), Xiaomi MIX 4 (right) selfie sample comparison

In fact, without looking at the sample, we can guess the results, although the two are very close to the configuration, but the Xiaomi MIX 4 selfie effect is probably not as good as the Xiaomi 11, which is mainly with the screen camera "inherent deficiencies" have a relationship (will be discussed below). And from the actual sample view, the biggest difference between the two also lies in the clarity, Xiaomi 11 for more detailed processing, hair, lip lines and other parts can be clearly visible, while Xiaomi MIX 4 in the details to retain some of the poor, smear marks or very obvious.

Xiaomi 11 (left), Xiaomi MIX 4 (right) selfie details comparison

It is worth noting that, perhaps in pursuit of better selfie results and highlighting portrait subjects, the Xiaomi Mi Mix 4 has no way to turn off background bokeh when taking selfies, so the background of each selfie is optimized by the algorithm, but the actual bokeh effect has obvious smear marks, which is why many users will have a feeling of blurred images when using the Xiaomi Mi Mix 4 for the first time to take selfies.

Obviously, in the matchup with Xiaomi 11, Xiaomi MIX4 has lost a round. So in the face of the challenge of the Xiaomi 5s, and whether it can come back to the city?

Xiaomi 5s (left), Xiaomi MIX 4 (right) selfie comparison

From this one, the Xiaomi Mi MIX 4 shot out of the young lady does look better, the skin tone is also more rosy, but some of the details, Xiaomi Mi MIX 4 is not more ahead than the Xiaomi Mi 5s, fingers, hair, lip lines and other parts of the same blur, there is still a lack of fine detail, highlight overflow. With today's eyes, perhaps the Xiaomi 5s is not good, but so is the Xiaomi Mi MIX 4, and this 5-year-old phone to make a match, only to say that the Xiaomi Mi MIX 4 is really not a product for selfie.

In fact, the Xiaomi MIX 4 selfie will have such a performance is expected, after all, Lei said at the launch, do not recommend the love of selfie users to buy Xiaomi MIX 4. The only thing we did not expect is that the Xiaomi MIX 4 may be worse than imagined, which is more or less a pity. So we can't help but ask, why is the under-screen camera in the selfie will show such a performance?

2, why the screen phone is not suitable for selfies?

If you have ever observed the front camera of your own phone, it is not difficult to find that it is covered with a layer of glass. The most critical thing for camera imaging is light, only when the sensor receives light, to complete the imaging, and enough light, but also an important guarantee of sample clarity. There is no doubt that the glass is precisely the best light transmission rate of the material.

But to the under-screen camera phone, the front camera above the glass lens is no longer, but by the screen to replace it. The screen, as we have all seen, is lined with dense pixel dots, which is not the same as clear glass.

lens structure schematic

Therefore, even the very light-transmitting OLED screen is difficult to ensure sufficient light transmission, if you need to improve the light transmission, it is necessary to redesign the pixel arrangement and circuit alignment of part of the screen, which also leads to a new problem, both this part of the screen in color, brightness and the perception of each perspective, it is difficult to maintain consistent with other screen areas.

Xiaomi Mi MIX 4 under-screen camera solution

In other words, this is a "fish and bear's paw" problem, a good view of the screen will inevitably sacrifice the quality of the selfie. In fact, the Xiaomi Mi MIX 4 screen effect is really good, only at certain angles and slightly darker display scenes to notice the abruptness of the sense, obviously Xiaomi will focus on the screen, then Xiaomi Mi MIX 4 will have such a selfie performance is not surprising.

Finally, a word.

If you don't place much importance on selfies and don't use the front camera much on a daily basis, but are interested in the under-screen, then the Xiaomi MIX 4 with a good display is a good choice instead.

Finally, we still want to remind you that although the under-screen camera has been a mass-produced models exist, but more or a taste of the appearance, if you look forward to a more mature experience, at least for now seems to need to wait a little longer.