Xiaomi MIX 4 With Under-Screen Camera Officially Launched

As scheduled, today, Xiaomi uncovered the next-gen Xiaomi MIX 4 smartphone. There are too many things we should talk about. So let’s save our time and get a closer look at this piece of art.

Xiaomi MIX 4 Display

The Xiaomi MIX 4 uses a CUP technology. In 3 years, more than 100 display engineers were involved in creating this display. Xiaomi made 500 million yuan investment in R&D, overcoming countless technical problems and obtaining dozens of invention patents. And this year, it finally gave birth to this dream full screen.

This screen hides the camera under it, resets the circuit layout through the micro-drill arrangement, uses transparent leads to improve the screen’s light transmittance, and also has a 100% full-pixel display and 400 PPI accuracy.

The Xiaomi MIX 4 uses a 6.67-inch AMOLED slightly curved flexible screen, which supports 10bit primary color screen, TrueTone display and Dolby Vision, has a Gorilla Glass cover, and can automatically adjust the screen’s cooling and heating display according to the ambient color temperature.

In addition, the Xiaomi MIX 4 uses a 20MP under-screen front camera, adds AI image enhancement algorithm to optimize the selfie effect, and has three colors of ceramic white, ceramic black and shadow blue and gray.

The phone also uses the original pixel miniaturization technology, which is almost the same as the 3D flexible screen display effect of other parts of the mobile phone, and the life is almost the same.

Xiaomi MIX 4 Camera

The Xiaomi MIX 4 has three rear cameras. The main camera is the HMX 108MP CMOS, a 1/1.33 inch sensor that has been polished for more than two years. It supports four-in-one 1.6-micron large pixels technology, OIS, and has 7P lenses.

The second is a 50x periscope telephoto lens with an 8MP resolution, which supports 5x optical zoom, an equivalent focal length of 120mm, and OIS.

Finally, there is a 120-degree free-form surface ultra-wide-angle lens with a 13MP resolution. Its unit pixel size is 1.12 microns, while the aperture is F2.2 and it has 6P lenses.

This ultra-wide-angle lens is especially worth mentioning. It is the first time that Xiaomi has added a free-form surface lens to an ultra-wide-angle lens. By calculating the falling points of tens of thousands of different angles of light passing through the lens, combined with mathematical models, it is corrected for each point one by one to create the unique curvature of the lens. So the light falls on the sensor accurately, without algorithmic cropping, it can directly produce a large field of view photo with a distortion rate of only 1%.

In addition, Xiaomi Mi MIX 4 also supports the simultaneous activation of the main camera and the ultra-wide-angle lens. So two photos are merged together through an algorithm. The center area is from the main camera and the edge area is from the ultra-wide-angle lens.

Xiaomi MIX 4 Battery

There is a built-in 4500mAh battery, supporting Xiaomi’s strongest fast charging combination: 120 watt wired charging and 50 watt wireless charging.

It can refuel the battery to 100% in 21 minutes. In addition, it also supports fast mode: 80% charge in 10 minutes, 100% charge in 15 minutes.

In terms of 50-watt wireless charging, it can reach 100% mark in 45 minutes. Wireless charging also supports fast mode: 100% charging in 28 minutes.

In addition, in response to the problem of mobile phone overheating during charging, the Xiaomi MIX 4 also adds 120 watts per second charging technology and intelligent charging system at room temperature on the basis of fast charging. Lei Jun said that in the 120W normal temperature mode, the charging temperature does not exceed 37°C.

This is mainly due to the excellent heat dissipation capacity of the Xiaomi MIX 4. The total heat dissipation area is as high as 11588mm2. It adopts the latest graphene uniform temperature plate with an area of 1232mm3, which reduces weight by 50%.

Xiaomi MIX 4 Performance

The Xiaomi MIX 4 sports the Qualcomm Snapdragon 888 Plus chip. Compared with the Snapdragon 888, the Qualcomm Snapdragon 888 Plus integrates the Kryo 680 CPU which has a super core frequency of up to 3.0GHz. In addition, the 6th generation Qualcomm AI engine it supports has a computing power of 32 trillion operations per second (32 TOPS), and AI performance has increased by more than 20%.