Soft light dual camera vivo X9 detailed evaluation | Ainongji - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

After more than four months, vivo launched the vivo X9. From the perspective of naming, it seems that this X9 is an iterative version of X7, but in fact, X9 is not a comprehensive upgrade compared with X7. As can be seen from the configuration, vivo X9 mainly improves the ability to take photos in front. It is equipped with a front dual camera and the front main camera is 20 million pixels. In terms of SoC, X9 uses Snapdragon 625, and X7 uses medium and high-end Snapdragon 652. On the contrary, X9 has lower SoC performance. In addition to SoC, front camera and screen size, the difference between the two is not very big.

Specifications

appearance

The outer packaging of the vivo X9 still follows the old routine of vivo, which is not very different from the previous vivo series. After opening the package, you can see a wealth of mobile phone accessories: two mobile phone cases, high-definition film, headphones, fast charging head, data cable, card pin.

In fact, from the front of the machine, there is little difference between the vivo X9 and X7. The most obvious difference is that X9 has an additional front camera.

The back of the vivo X9 is somewhat similar to that of the iPhone 7, with a prominent camera and plastic injection molding metal partition strip.

The bottom of the vivo X9 is still the classic vivo layout of 3.5mm interface, microphone opening, Micro USB interface and speaker opening, which is the same as the vivo X7.

The total width of black edge+white edge of vivo X9 screen is 1.59mm

The standard power adapter of vivo X9 is 5V===2A, 9V====2A.

system

In terms of the system, the new Funtouch OS3.0 has made some adjustments in the system UI, In terms of UI, it simplifies the user's operation process and fine-tuning on many systems. For example, there are more shortcuts displayed in the pull-up menu bar, the financial app interface will be blurred when the multitask menu is called out, and QQ and WeChat shortcut icons are added to the main interface of the Futouch OS 3.0 file manager.

screen

Vivo X9 screen test data:

Contrast: ∞ Default color temperature: 7332K Maximum brightness: 410nits sRGB color gamut: 142.3%

Average color accuracy of 104 colors: 6.1 Brightness of each part of the screen under manual maximum brightness: 360~410nits

performance

In terms of performance, the Vivo X9 uses Snapdragon 625 SoC, the CPU is A53 with eight 2.0 GHz dominant frequencies, and the GPU is Adreno 506. The performance of the Vivo X9 has never been strong. This time, the Vivo X9 is even weaker than the Vivo X7. Different from person to person, users with strict performance requirements should also not consider the vivo X series. The X9 has a clear target audience, that is, selfie users, and these users are basically not performance controlled. The Snapdragon 625 can not compete with flagship SoCs such as the Snapdragon 820, but daily use is enough.

In addition, although the performance of Adreno 506 is relatively limited, there is no pressure on the Android lock frame 30 game of King Glory. In a game, it can basically maintain an average of more than 28 frames. In most cases, it is 30 frames, which is relatively stable.

Rear camera

daytime

Left: vivo X7 Right: vivo X9

In the daytime outdoor scene, there is no obvious difference between X9 and X7. The sample saturation of X7 will be higher, and their white balance performance is almost the same. Although X9 is an IMX298 with 16 million pixels, it is not much better than X7 in terms of analytical power alone. The advantage of X9 in analytical power can be seen when the samples are simultaneously magnified to about 175%.

indoor

Left: vivo X7 Right: vivo X9

In this group of indoor scenes, the exposure of X9 is higher than that of X7. From the details of the magnified model, there is still no significant difference between the two.

Left: vivo X7 Right: vivo X9

In the second group of indoor samples, X9 finally showed the detail advantage of IMX298. The focus of this group of proofs is on the smear algorithm and analytical power. Please pay attention to the text on the billboard in the distance. After zooming in, we can find that the X9 proofs have been compared with X7 in terms of star algorithm smear, which also ensures a high analytical power. This is not only the advantage of pixels, but also the addition of algorithm and IMX298.

Left: vivo X7 Right: vivo X9

Here's an explanation first. The three words "Lei Feng Net" in the sample sheet of X7 seem to be hand shaking and pasted, but in fact, in this group of samples, the author has taken no less than eight samples with X7. The words "Lei Feng Net" in each sample sheet are the same, so this is not the difference made by hand shaking.

In the third group of indoor samples, the advantage of X9 is still obvious. After the two samples are magnified, the analytical power of X9 is obviously stronger than that of X7. However, in this group of samples, the white balance of X9 is slightly cold, while the actual white balance should be slightly warm.

Left: vivo X7 Right: vivo X9

Among the samples in this group of garages, X9 has more obvious advantages, noise control and analytical power are far better than X7, and the gap between the two samples is obvious.

Left: vivo X7 Right: vivo X9

In the indoor samples, we can see that the advantages of X9 are beginning to expand, focusing on early control and analytical power.

at night

Left: vivo X7 Right: vivo X9

In this group of night samples, the X7 performs much better than the X9, and the X9 has poor noise control in the sky and the building.

Left: vivo X7 Right: vivo X9

At night, except for some scenes, The performance of the X9 is basically the same as that of the X7 in weak indoor light. It is far ahead of the X7 in terms of noise control and image purity, but unfortunately it is also not equipped with optical anti shake. Although no stronger camera phone is added in the photo evaluation as a comparison, our previous experience shows that such imaging effect still lags behind the first echelon of smartphone photography, But it is also a fact that it is better than X7.

With the addition of IMX298 and larger aperture, the rear weak light photography of vivo X9 is much better than that of vivo X7. In addition, the X9 has a far better perspective and weak light focusing speed than X7 in the actual measurement process. Although the vivo X9 is a mobile phone that focuses on front dual camera, the effect of its rear camera is more satisfactory than that of the X7. Female users' enthusiasm for taking selfies is not the reason to reduce the ability of rear camera. Users often hope that smart phones can highlight one of their most important functions when all aspects are relatively balanced, The X9's post photo upgrade can be said to fill the functional gap of the X7.

Front photo

The biggest feature of vivo X9 is its front camera function. Vivo not only provides a front soft light for it, but also provides two front cameras to simulate the depth of field virtualization effect of a large aperture camera through dual photography. Previously, all smart phones used dual photography for the rear camera. Vivo is the only manufacturer in the market that uses a front dual depth of field camera. When using double camera virtualization, you can adjust the size of the electronic aperture by dragging the screen up and down. The larger the electronic aperture is, the greater the degree of virtualization is. You need to operate according to the actual situation.

The front beautification function of vivo X9 is different from that of vivo X7. It provides three options: skin abrasion, skin color and whitening. On X7, skin abrasion, big eyes and thin face are available.

Real shot of beautiful women

Left: vivo X9 takes a normal selfie Right: vivo X9 turns on depth of field virtualization (electronic aperture F0.95)

Vivo X9 takes a normal selfie without blurring depth of field

Left: vivo X9 takes a normal selfie Right: vivo X9 turns on depth of field virtualization (electronic aperture F0.95)

In actual use, we can still see some flaws in the front depth of field of the vivo X9 at the edge of the virtualization. For the time being, this flaw is similar to the dual camera rear position of the Huawei P9, I can hardly see the flaws when I send the small pictures of my friends circle, However, it is unnatural to see the edges of photos when they are viewed in full screen on the phone.

Endurance

In terms of endurance, the vivo X9 has achieved relatively good results in our regular three hour endurance test. Compared with the current mainstream flagship phones, it has different degrees of leadership, but the advantage is not great, mainly because it is in the first test project (NBA2K15) The power consumption in is less. However, considering that it uses the Snapdragon 625 with limited performance, this result is no exception. The endurance level can basically maintain a normal day of use.

summary

The upgrade of vivo X9 is not so much as that of X7. On the contrary, the performance of SoC has gone backwards. The progress can be summarized as follows: 1. stronger self timer function; 2. Stronger rear camera; 3. Improved endurance; Its improvement is mainly reflected in taking photos, and its price is only 300 yuan higher than that of the X7. Rather than considering the X9 as the next generation of the X7, the author believes that it should be an enhanced version of the X7, which may be a good choice for some women who have a strong demand for self portraits. After all, this is the only smartphone on the market that has a front dual camera with virtual depth of field.

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