With the rise of full screen, major smartphone manufacturers have followed up. As one of the leading manufacturers in China, vivo will not miss it. Recently, vivo launched its main model of 2018, vivo X21, which uses the current popular Liu Haiping design. The ratio of 19:9 and the only 1.66mm frame give it a screen proportion of 90.3%, This is also one of the models with the highest proportion of screens in domestic mobile phones at present, which is very close to the vivo APEX concept machine that has conquered domestic and foreign media before. It has to be said that among domestic manufacturers, vivo has reached the forefront at present.
However, in addition to the amazing screen proportion, vivo X21 has also made some achievements in photographing. The main camera uses the S5K2L9 sensor from Samsung, uses 2 * 12 million pixels (24 million light sensitive units), supports full pixel dual core focusing, and can use 12 million pixels and 24 million pixels for photographing. The secondary camera is S5K218, also from Samsung. It is designed with 5 million pixels and is mainly responsible for the depth of field. Today, let's see how much progress Vivo has made in photography in the past two years.
Daytime proof sheet
In order to show the improvement of the photography effect of X21, we selected its previous generation product X20 for comparative testing. Both of them use the automatic backlight (HDR) shooting mode. In the actual test, the excitation scenes of the two are almost identical, so the imaging effect is also relatively close. However, in terms of the use experience, especially the focusing experience, it has been greatly improved compared with X20. The biggest difference between the two is that X21 can continuously focus on the same focus point when shooting the same focus point continuously, while X20 needs to click focusing every time, which makes it more cumbersome to use.
Left - X20 Right - X21
100% local magnification
Left - X20 Right - X21
100% local magnification
Left - X20 Right - X21
100% local magnification
Due to the rapid progress of sensor performance in the past two years, it is difficult to open the gap between sensors of the same level and pixel in daytime proofs, especially in details, there is almost no difference between products of the same pixel level. This rule also applies to X20 and X21. However, due to the difference in algorithms, there are still some differences between the two in terms of white balance and exposure. In contrast, X21's restoration of red and blue is more realistic, with moderate saturation, and the white balance is also a bit cooler. Therefore, the overall style is closer to the naked eye, but the photos that tend to be more realistic are not as eye-catching as those with heavy ink and color, However, this is also a matter of difference. In terms of exposure, X21 and X20 are not very different, but on the whole, X21's exposure is relatively low, and the two are in the middle.
Night proof sheet
In the aspect of night scene proof, the importance of algorithm is more important than that of daytime. Usually, the same set of photographing modules can be improved greatly after algorithm upgrading. Therefore, although X21 and X20 are not different in hardware, the change of algorithm has also changed them greatly.
Left - X20 Right - X21
100% local magnification
Left - X20 Right - X21
100% local magnification
Left - X20 Right - X21
100% local magnification
In terms of night scenes, the performance of the two is quite similar, but there are still some differences in some details. For example, X21 has improved in terms of picture purity. The painting is quite clean, and the noise control has also improved slightly, but the overall gap is not big. In addition to the improvement of noise control and smearing algorithm, there are also some changes in color. Compared with the daytime sample, which has properly reduced the saturation, the nighttime sample appears to be richer in color, with increased saturation, slightly warmer color temperature, and more comfortable overall picture view.
Pre beautification
In addition, this vivo has made full use of the AIE AI acceleration chip of Snapdragon 660, and added many AI and AR functions for taking photos, such as automatic camera scene recognition, AI beauty, AR cute shooting, etc., providing more playing methods for self taking, and AI functions have finally landed in real use.
AI beauty is no stranger to many users. Its AI chip based beauty intelligent algorithm has a higher recognition rate and faster photo processing. It can be targeted and optimized according to different skin colors and face shapes. Compared with the traditional stereotyped beauty effect, AI algorithm is more personalized and more personalized.
In addition, the newly added AR cute shooting function, with a variety of AR accessories, is not very practical, but for girls who like to take selfies, there are still many interesting ways to play, and various cute animated characters instantly activate girls' hearts.
summary
Although the camera performance of vivo's models in the past two years is not very stable, since Xplay6, Vivo's efforts in taking photos have been obvious to all. As a major new product of vivo in 2018, X21 is no exception. Although it does not reach the height of Xplay6, its overall performance is still good, Its 2 * 1200 pixel sensor has left a deep impression at night, which is enough to make it rank first among domestic mobile phones. If you want to choose a model with large screen and high face value, but also taking photos, consider the popular fried chicken of vivo - X21.
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