Is Xiaomi 8 screen fingerprint worth buying? Detailed evaluation of Xiaomi 8 screen fingerprint
4hw.com.cn: Recently, Xiaomi held the autumn new product conference in Chengdu, and released Xiaomi 8 Youth Edition and Xiaomi 8 fingerprint edition. Among them, Xiaomi 8 fingerprint edition is the product that the audience is eager to produce. It is equipped with fingerprint identification under the screen on the front and the fingerprint on the back that is criticized is removed. Is Xiaomi 8 fingerprint edition worth buying? Let's take a look at the experience.
Hardware configuration:
It can be seen from the table that the fingerprint version of Xiaomi 8 screen is the same as that of Xiaomi 8 in most configurations. The basic configurations of Xiaolong 845 processor, dual 12 million pixel dual camera, dual band GPS and infrared face recognition have not changed.
The only thing that changed the fingerprint from the back to the screen, and the battery dropped from 3400mah (typ) to 3000mAh (typ).
Therefore, in terms of endurance, it has become a hard injury to the fingerprint version of Xiaomi 8 screen. From the perspective of actual use, although the battery life of mobile phone is more different from person to person, different use scenarios will lead to different results.
But in practice, if it is used heavily, the endurance of the fingerprint version of Xiaomi 8 screen is only about half a day. It is recommended that if you use Xiaomi 8 screen fingerprint version or transparent exploration version, you must bring a power bank when you are away from home.
The appearance of screen fingerprint saves the ID design of Xiaomi 8
In addition to the functionality, the fingerprint under the screen brings not only a more technological experience, but also a direct impact on the product ID design. This is reflected incisively and vividly in Xiaomi 8 screen fingerprint version.
As we all know, the fingerprint on the back of the rear not only brings a sense of backwardness in the experience, but also affects the integrity of the back of the mobile phone.
So we can see that in this year's products, or just like P20 pro, in order to make that beautiful Aurora color on the back shell, we would rather make another chin under the screen.
Or for the screen share of the front, fingerprint identification is used at the expense of the aesthetic feeling of the back shell. In Xiaomi's 8 screen fingerprint version, this problem is finally solved. That's exactly what brought the mirror gradient Twilight gold and transparent colors.
The new Twilight gold version adopts mirror gradient technology and vacuum nano magnetron sputtering technology.
Under high vacuum, the substrate and coating material (target) to be coated should be placed in the vacuum cavity at the same time. The target is bombarded by electron or high-energy laser, and the surface components are sputtered out in the form of atomic group or ion, and finally deposited on the substrate surface to form a color film.
In the process of treatment, it is necessary to accurately control the thickness difference of each layer of nano coating, so as to avoid color drift leading to product scrap.
We know that in the natural color, there are mainly two kinds of structure color and pigment color. The so-called pigment color refers to the color caused by the pigment contained in the organism. The color is relatively unstable and easy to be affected by the natural environment.
Therefore, the gradient colors used in Xiaomi 8 series are all displayed in structural colors. Structural color is a kind of luster caused by the wavelength of light. In the fine structure of the object surface, various colors are produced by refraction, diffuse reflection, diffraction or interference of light waves.
Interestingly, we also saw a separate back cover before the conference. The multi-layer nano coating generated by vacuum magnetron sputtering is light in color, and the back cover is almost translucent. Only under the reflection of light, can it show a gradual color.
The front of the fuselage is exactly the same as the standard version of Xiaomi 8. It is still Samsung AMOLED's 6.21-inch screen. The overall screen looks good.
And millet 8 transparent color we are already familiar with, with the previous version of transparent exploration consistent. The appearance of screen fingerprint has greatly saved the ID design of Xiaomi 8 standard version.
The complete back cover brings a more fashionable gradient color matching, and makes the transparent version with a sense of technology before mass production. Frankly speaking, if I throw away the inevitable part of the bangs, I will feel that the fingerprint version of Xiaomi 8 screen is the most design conscious generation of Xiaomi digital flagship.
Xiaomi's fastest face recognition ever, and possibly the fastest off screen fingerprint yet
In fact, there is no picky part about the performance of the standard version of Xiaomi 8, so the online slot points mainly focus on the Liu Haiping and the back fingerprint identification.
At present, there is no good solution to the problem of "Liu Haiping". After all, it is necessary to consider both the front camera and various sensors, and also to pursue the screen share. Therefore, Liu Haiping is also a relatively common solution at present.
Especially for Xiaomi's annual delivery volume of digital flagship, the selected way must be the most reliable solution in the supply chain.
And frankly speaking, in fact, the so-called wide bangs, narrow bangs, or beauty tips, are essentially 50 steps of laughter. The reason Xiaomi 8's bangs are wider is that infrared cameras and infrared lighting elements are added to provide the function of unlocking at night.
In the fingerprint recognition of Xiaomi 8, it still continues the infrared face recognition of Xiaomi 8, using the front 3 & mu; m super-pixel infrared camera and infrared lighting elements.
Compared with other ordinary RGB cameras on mobile phones, infrared lighting elements can actively emit invisible near-infrared light with a wavelength of about 940nm. The infrared light shines on the user's face, forming a unique image, and then the infrared camera receives the reflected infrared light for imaging, which can be unlocked smoothly in the night with few lights.
In the new version, MIUI has increased the speed of face recognition by a lot. Compared with the unlocking speed of 3D structured light on Xiaomi 8 transparent exploration version, it's "real fragrance"!
In terms of security, TOF is indeed more secure than 2D face recognition, but at present, there are not many people who can support face payment in all directions in MIUI, so as an auxiliary unlocking means, as long as it is fast enough.
In the pure black environment, thanks to the Xiaomi 8 screen fingerprint version of this infrared system, it can also achieve almost second solution speed.
Another point on Millet 8 was Tucao by netizens: back fingerprint, also make complaints about the appearance of screen fingerprint. In fact, Xiaomi 8 has used off screen fingerprints on the transparent exploration version.
Compared with the traditional capacitive fingerprint, the under screen fingerprint is almost optical fingerprint.
Generally, the screen of mobile phone is used as the main body of light, which irradiates the fingerprint through the light path, and the reflected light of fingers passing through the gap of AMOLED pixels is returned to the CIS (CMOS image sensor) under the screen through the screen. The mobile phone analyzes and compares the returned image with the database, and finally identifies the fingerprint.
In the previous practical experience, the fingerprint recognition of Xiaomi 8 transparent exploration version requires the finger to hold the fingerprint recognition area all the time, and the recognition speed and accuracy are relatively common.
In the Xiaomi 8 screen fingerprint version, through the actual measurement, both the recognition rate and the recognition speed do have a visible speed improvement. And Xiaomi 8 also adds vibration feedback of z-axis linear motor for fingerprint identification under the screen. When the finger is pressed to feel the vibration, the screen will unlock at the same time, and the whole unlocking process is very smooth.
We also compare it with vivo x23, which is the most mature screen fingerprint. From the perspective of slow motion playback, although there is still a gap between the recognition speed of Xiaomi 8 screen fingerprint and vivo x23, it is close to each other, and the recognition accuracy is almost the same.
After all, vivo has accumulated two years of practical experience in the field of screen fingerprint. As the first time to use screen fingerprint, it can have such performance, which is worthy of praise.
Summary:
Compared with the standard version of Xiaomi 8, which is more cost-effective, the fingerprint version of Xiaomi 8 screen is further upgraded, with more popular gradient colors and the most design sensitive transparent version, which organically combines technology and practicality.
If I use a sentence to summarize the fingerprint version of Xiaomi 8 screen, I will say: This is what Xiaomi 8 should have looked like in my heart.
In addition, the starting price of Xiaomi 8 screen fingerprint version is 3199 yuan. For some users who didn't have a very cold for the appearance of Xiaomi 8, the upgrade of Xiaomi 8 screen fingerprint version seems to have no short board at present.
Xiaomi 8 screen fingerprint version will be officially put on sale in the official mall on September 21, and Lin bin also made a promise of "guaranteed availability" at the conference. Users interested in transparent exploration version can go to the official website to purchase.