Xiaomi Mi 9 is positioned as a "small screen flagship", but in fact, the 5.97-inch screen is also close to 6 inches, but it is a relatively small screen, which is far from the traditional small screen machine. It's not accurate to say that it's a small-screen flagship, and it's more appropriate to describe it as a quasi-flagship with a small fuselage.
 
The Xiaomi Mi 9SE looks like a cheap version of the Mi 9, for example, limited to cost, it lowers the specifications of the SoC, uses the Snapdragon 712, reduces the process difficulty of the back cover Phantom, and looks like just an ordinary color nano coating. However, when you take Xiaomi Mi 9SE out alone, you will find that it has the highlights that a 2000 yuan machine should have, and the completion of the entire mobile phone is quite high, for example, Samsung Super AMOLED, the first Snapdragon 712SoC, the flagship machine is usedIMX586, and the fifth-generation under-screen fingerprint recognition, which are placed in the 2000 yuan level, still have a strong competitiveness.
 
In terms of appearance, Xiaomi Mi 9SE has a significant improvement over 8SE, and the back is similar to Mi 9 Holographic Phantom Coated Glass, although the color changes are not as rich as Mi 9, but the look and feel are relatively similar. If you don't like too dazzling colors, there are also dark gray options available, which are subtle but have a warm texture. The triple camera module behind it has the same problem as the Xiaomi Mi 9, that is, it is very prominent, and you can only wear a very thick phone case to smooth out the drop.
 
The front of Xiaomi Mi 9SE is a Samsung Super AMOLED waterdrop screen, 5.97 inches, resolution 1080*2340, real screen-to-body ratio of 84.1%, and the surface is covered with fifth-generation Corning Gorilla Glass. Due to the smaller screen size, the Xiaomi Mi 9SE has a slightly higher PPI than the Xiaomi Mi 9 at 432PPI. The screen perception and color accuracy performance are in line with the normal level of SamsungSA screen,Give SamsungSA screen at this price,It's also very sincere。
 
Compared with Xiaomi Mi8SE,9SEThe rear fingerprint unlocking is changed to under-screen fingerprint unlocking,The same scheme used by Xiaomi Mi9,Both are fifth-generation optical fingerprint unlocking,The unlocking speed and recognition rate of both are very close,The disadvantages are almost the same,That is, the recognition speed will be slower in some scenarios,The unlocking success rate will be reduced。 Xiaomi has added a function to this fingerprint unlock, long press to call out the shortcut key, and it is very convenient to enter the scan and payment code.
 
The first Snapdragon 712 is not a big highlight, from a numerical point of view, the main frequency of the large core has been increased from 2.2GHz to 2.3GHz, the GPU is also Adreno 616, and the performance has increased by 10%, compared to the Snapdragon 710, there is no very obvious improvement, at best, it is an overclocked version of 710, which is quite a squeezing toothpaste. In daily use, it is difficult to feel the obvious difference, "Honor of Kings" and "Exciting Battlefield" can run relatively stably, but there will still be frame rate fluctuations in complex scenes, and games such as "Honkai Impact III" that require GPUs will have obvious frame drops. The 712 should remain in the mid-range market for some time before the 8nm A76 mid-range SoC is introduced.
 
Last year's Snapdragon 710 models, many of them are using emmc5.1 flash memory, and Xiaomi Mi 9SE uses UFS flash memory, although there is a gap with the UFS2.1 used on the flagship machine, but compared with emmc5.1, the read and write speed is still very advantageous. In addition, Xiaomi Mi 9SE does not use dual MIMO antennas, which is a step backwards compared to Xiaomi Mi 8SE, but this can also meet the needs of use in daily use, and it is estimated that it is also due to cost considerations, reducing the hardware configuration that the experience is not obvious.
 
The main camera of the Xiaomi Mi 9SE uses the same IMX586 as the Xiaomi Mi 9, the overall performance of the two is very close, the detail tuning is different, the ISP of the Snapdragon 712 and Snapdragon 855 also has a significant gap, and in terms of HDR synthesis, night scene noise reduction and other hardware-related experiences, the Xiaomi Mi 9SE will be lacking. Like the Mi 9, the 9SE is prone to high levels of noise, insufficient highlight suppression, and loss of detail in dark scenes in night shots, which is significantly improved with the Google Camera.
 
Charging battery life is not too good for Xiaomi Mi 9SE, because the body is small, so the battery capacity is only 3070mAh, even if the Snapdragon 712 can maintain a good energy consumption ratio, it can only barely meet the needs of a day of moderate use. In terms of charging, it only gives 18W fast charging, and if it supports 27W fast charging like Xiaomi Mi 9, it can also improve the battery life experience as long as it can be charged for a short time outside.