There is a big contrast among the three off screen cameras on the market. The most expensive camera may not be the best

2021 can be said to be an explosive year for offline cameras mobile phone After the full screen era was officially launched, the front facing camera that has nowhere to place becomes very difficult. Previously, in order to hide the "ugly" black hole on the screen, the manufacturer had also launched a pop-up camera. Due to the mechanical structure, it was difficult to control the thickness and weight of the fuselage; How to hide the camera perfectly has become the hottest topic at present.

As early as 2020 ZTE AXON 20 It used to be equipped with offline camera technology, but many users still take a wait-and-see attitude; In this year's mobile phone market Xiaomi MIX 4 ， ZTE AXON 30 ， Samsung Galaxy Z Fold3 The 5G is the three off screen camera phones, but who is better at hiding the camera and has a stronger ability to take self portraits? Today's actual measurement will help you find out. (Samsung Galaxy Z Fold3 5G hereinafter referred to as Samsung)

01 Photograph: imaging effect, poor light in fog

Before this test, let's take a look at the front camera configuration of each model:

ZTE AXON 30 front camera is 16 million pixels The front camera of Xiaomi MIX 4 is 20 million pixels. The former supports the pixel four in one technology, while the front camera of Samsung Galaxy Z Fold3 5G is 4 million pixels. Due to the use of the off screen camera technology, the photos will be optimized to some extent when the phone's own beauty function is turned on. Let's take a look at his actual performance.

Top left: ZTE AXON 30 Top right: Xiaomi MIX 4

Lower left: Samsung internal screen shooting Lower right: Samsung external screen shooting

It is easy to see from the self portrait comparison pictures of the three mobile phones that the color filtering and detail of the Samsung Galaxy Z Fold3 5G are the best regardless of the final imaging effect, but he does not use a hidden camera, which is also expected.

First, let's look at the ZTE AXON 30. Its image definition is the best among the three mobile phones. It handles details more carefully, with hair and eyelashes clearly visible. The green plants behind it try to restore the true color. In order to highlight the theme of the characters, the background behind it is obviously blurred, but its performance as an off screen camera is still excellent.

Next is Xiaomi MIX 4. The traces of the characters optimized by the algorithm are very obvious. The details of the characters are not handled carefully enough, and the control of light is also lacking in accuracy. The color of the hair of the characters is obviously different from the other three photos. From the green plants behind, it can be seen that the whole picture is dark, but the clarity of the camera, paper and other objects behind is higher than ZTE.

Finally, the Galaxy Z Fold3 5G internal screen camera was used to take the desired sample. If the first two pictures were not clear enough, Samsung was a gray area. No matter the details and characters in the picture were not real, the background was seriously blurred, with obvious smear marks, and there was no control over the overall color, Therefore, it is suggested that users of the Samsung Galaxy Z Fold3 5G should use the outer screen selfie as much as possible.

If you really want to rank the three mobile phones, the overall performance of Samsung's external screen is the best, followed by ZTE AXON 30's exquisite and realistic main characters, followed by Xiaomi MIX 4's good analytical ability to the pictures, but the characters are optimized and the color difference is too serious, and finally the Samsung Galaxy Z Fold3 5G off screen camera. It is recommended not to use it to take a self portrait with your little sister, which may damage feelings.

02 Appearance: under screen camera under microscope

Although the three mobile phones are all under screen cameras, their visual performance is different due to different manufacturing processes. ZTE AXON 30 uses Vicino small delta+delta arrangement, Samsung Galaxy Z Fold3 5G uses (UDC) under screen camera technology, and Xiaomi MIX 4 uses TCL Huaxing small pearl+pearl arrangement, The difference may not be seen directly by the naked eye, but the pixel arrangement they adopt can be seen at a glance under the microscope.

From left to right are ZTE, Samsung and Xiaomi

Under the electron microscope, ZTE AXON 30 and Xiaomi MIX 4 pixels are arranged neatly and densely, which also enables them to have a better display effect. However, Samsung uses the self-developed (UDC) camera technology under the screen, and each independent pixel point has a large volume and large spacing. Although it can also achieve the effect of hiding the camera, it is not the optimal solution compared with the former.

ZTE AXON 30, Samsung, Xiaomi MIX 4

When the front of the three mobile phones simulates the naked eye shooting, the ZTE AXON 30 and the Xiaomi MIX 4 can hardly see anything different in the front camera position. In contrast, the Samsung Galaxy Z Fold3 5G's "hiding" effect is not so good. Now let's look at the performance of Xiaomi and ZTE in a more rigorous environment from another perspective.

The performance of Xiaomi MIX 4 is very good when measured on a single machine, and the difference can be seen vaguely with the naked eye only when the maximum brightness of pure white and gray are darker.

ZTE AXON 30 in white wallpaper At the highest brightness, the position of the front camera is clearly "exposed". When you use it in the sun, you can observe the screen layering through the side and bottom of the mobile phone screen.

ZTE AXON 30

To sum up, the Samsung Galaxy Z Fold3 5G is the most obvious camera under the screen. If you really want to rank them, Xiaomi ≥ ZTE>Samsung.

03 Summary

In this competition of screen cameras, each mobile phone shows its own unique advantages, but each product has its own unique advantages and disadvantages, so it is necessary to choose the most appropriate product according to the needs.

If you don't care about the price of the Samsung Galaxy Z Fold3 5G, it is a product with balanced performance. In addition to experiencing the latest off screen camera, you can also experience the ultimate look and feel brought by the folding screen. At the same time, the external screen can also meet your daily needs for self portraits.

If you want to buy a phone with an under screen camera that is cost-effective, the ZTE AXON 30 can give you a full screen and unobstructed user experience. The 6.92-inch screen is very slim and easy to use.

If you want to buy a main machine that will be used for a long time, you have high comprehensive requirements for performance and endurance. The Xiaomi MIX 4 must be a well deserved choice. The use of the Snapdragon 888Plus processor has no pressure on daily office work, games and entertainment. It also supports 120W cable fast charging and does not have to worry about endurance.

In today's tough mobile phone screen performance, every manufacturer is constantly trying to break the current "stalemate" situation; The birth of off screen camera technology also proves the future direction of mobile phone screens. However, this technology is not perfect. I believe that with the continuous efforts of various mobile phone manufacturers, this technology will be applied to more mature models. If you are interested in offline cameras, you can start now.  

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