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Mobile phone manufacturers are divided into three genres to increase screen share:

One ​​pie is working on the screen, using the method of hollowing out and bending on the screen to maximize the screen Stretching; the other is to work on the camera, the mechanical structure hides the front camera, and then maximizes the screen display space. The last faction completely overturned the traditional mobile phone design, directly replacing the front with a rear camera, leaving the entire front to the screen.

The Nubia Z20 we experience today belongs to the third type of design, which is also currently A small number of double-sided screen phones. In the past, we have experienced many of the same types of products, YotaPhone, vivo NEX 2… These phones with different designs have left us with a very interesting impression.

What about today’s Nubian Z20 performance?

What is the use of the two screens?

The Nubian Z20 is the third dual-screen phone I have been in contact with in the past 300 days. Whether it is last year’s vivo NEX 2 or today’s Nubian Z20, the dual-screen design in addition to simply giving the user more than one screen, but also giving the main screen to increase the screen ratio.

See here, you mayI will ask, “How is adding a screen to improve the screen ratio?” Then, I will talk about what role the secondary screen is.

The top of the traditional mobile phone is equipped with parts such as light/distance sensor and front camera in addition to the handset. With the increasing pursuit of screen-to-screen ratio, mobile phone manufacturers have begun to work on the layout of parts, such as under-the-screen sensors, hidden earpieces, vibration transmission and other technologies that have emerged in recent years.

But although some sensors can be hidden under the screen, the front camera cannot be blocked by any object So this requires a dedicated location for the camera. In this regard, conservative manufacturers will continue to have black-side lenses, while manufacturers with relatively mature screen technologies will dig holes in the screen or use mechanical mechanisms.

But in addition to the above methods, there is also a way to make the rear main camera take a front and rear camera, so that the main screen can maximize the proportion without worrying about the camera’s dedicated space, but also with high pixels. The main camera enhances the quality of the selfie, and the Samsung Galaxy A80, vivo NEX2 and today’s Nubian Z20 are among the “representatives”.

Different from the previous dual-screen Nubian X, this time the Nubian Z20 It is a hyperboloid design. The main screen has curved surfaces on both sides. The back glass panel and front pair are called edge surfaces, so the whole machine will feel more comfortable when it is used. The 186 gram fuselage does have a significant weight for me, but today, thousands of machines can force 200 grams today, 186 grams is also a common data.

The main screen of the machine is a 6.42 inch AMOLED curved screen with a resolution of 2340 x 1080. The book parameters are not very high, and the middle screen is normal; the back side screen is A 5.1 720P resolution screen, according to Nubian, this sub-screen is actually a flexible AMOLED, just contrasting the front main screen, its edge curvature is not so obvious.

Between the two screens, there is a 4000mAh battery, so let the thickness of the phone It reached 9 mm. However, since the front and rear glass panels are designed with a curved edge, this 9 mm thick machine does not make me feel cumbersome. If I didn’t go to the official parameters when I was writing, I didn’t even know it. The thickness is already close to 1 cm.

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Maybe in order to easily open the front and rear screens, this phone has two screens, but also Two side capacitive fingerprints are identified, which are symmetrically arranged at the center of the left and right sides.

As with the previous design in Nubian X, these two areas have both power button functions. This area also recognizes fingerprints entering the system when the power is turned on. Here I have entered the thumb, forefinger and middle finger respectively, which can be quickly unlocked after the phone is taken out.

What can a single screen do? This question actually started from the first dual-screen phone. I have been paying attention to the answer to this question. In the past YotaPhone, the ink screen can make the phone have both Kindle and e-books. Function, and in the “post-double screen era”, the role of the secondary screen is more AOD display and shortcut operation.

Audio AOD offers a variety of options, we can make the AOD display time of the two screens , patterns, GIF animations, custom statements, and more. The secondary screen also plays special effects as a decorative board during a call or music or game.

Of course, if you are not used to double-sided screen, you can actually adjust the main screen only in the settings. Then, the secondary screen becomes a screen that displays time or pattern only during standby.

However, compared to the previous AOD, multitasking display and quick payment are what I think can really play. The place where the double screen works. Similar to our past multi-tasking split screen function, when two apps are opened, two programs can be displayed simultaneously in the main and sub-screens. This feeling is like the difference between a computer screen and two screens in parallel. The peer-to-peer operation is performed separately, while the dual screen operates simultaneously without affecting the display area of ​​the main screen (also supports small program expansion).

But in fact, I prefer fast payment, can directly put the payment QR code on the secondary screen Among them, the step of entering WeChat and then transferring the down payment is omitted.

For other details, the Nubian Z20’s middle frame is made of metal, and the upper and lower ends are not designed. It is a flat but micro-U-shaped groove design. And the machine is not equipped with a 3.5 mm headphone jack, so if you want to use it to listen to songs, you need to prepare one more patch cord or Type-C headset.

Life is better than I expected

This part of performance is a place that I am not worried about. After all, as the brand’s flagship model, Xiaolong The performance of the 855 Plus + 8GB is almost negligible and the results can be known. Therefore, in this part of the performance, I will combine the battery life to understand the comprehensive performance of the product.

In terms of core configuration, the Snapdragon 855 Plus is a great place for this phone. First, its frequency has been upgraded from 2.84GHz to 2.96GHz of the Snapdragon 855, and the performance has increased by 4.2%; the graphics performance of the Adreno 640 has also increased by 15% for the game.

Contrast ROG Phone 2, Black Shark Phone 2 Pro These are the first batch of used 骁龙855 Plus’s products, the Nubian Z20 is one of the rare non-game positioning models (Nubia’s game phone is the Red Devil), so we can also see Qualcomm from the side.The degree of cooperation between Nubia.

As we have done with the flagship mobile phone evaluation before, the Snapdragon 855 Plus plus 8GB or more is basically running smoothly. Most of the games, so we have not worried about the operation of Peace Elite in this regard.

Like the previous Nubian X, the mobile phone’s secondary screen can also play the role of the touchpad during the game, putting the usual The two-finger operation becomes four fingers, which improves the game maneuverability. However, whether this kind of auxiliary function really helps the game operation, it feels that the benevolent sees the wise and sees wisdom.

In terms of battery life, the Nubian Z20 is equipped with a 4000mAh battery and supports up to 27W QC4. 0 fast charge. The battery capacity of 4000mAh seems to meet the benchmark of the current flagship mobile phone today, so the book parameters are still relatively reassuring.

But I am curious as to whether the dual-screen design will affect the battery life, after all, one more screen Not a single camera, this is where I always wanted to answer through the actual measurement.

However, despite the addition of one more screen, the daily main use is actually a positive screen, the back side The role of the screen is more to play the AOD clock and special effects display in the standby state, and these will not have much impact on the life of the mobile phone itself.

So although the 4000mAh battery does not have other main flagships on the data, it still loves it, but it still It can support 10 hours of use. If it is dual-screen multi-tasking and large-scale games are fully open, the battery life will drop to 6-8 hours.

As for charging, the phone pack comes with a PD charger up to 30W (15V2A) / 12V2.5A), both ends of the data line are Type-C interfaces. In the 30-minute fast charge test, the charger is stable at 16W, and finally the phone is supplemented with 41% of the power (from 38% to 79%). For short-term emergency, fast charge can play an important role.

Already the flagship standard 48 million photos< /h3>

This year, the domestic mobile phone industry has a new trend, that is, the camera must have multiple cameras,The main camera has high pixels. This trend has been developed since the beginning of the Red Rice Note 7 Pro. Whether it is the flagship or the non-flagship, even if there is no camera for super wide-angle and telephoto, there will be a super-high pixel. Shot.

This 48 megapixel CMOS on the Nubian Z20 is the IMX586 that we are familiar with. . As the first batch of CMOS designed to 40 million pixels or more, this product has been interpreted a lot since the first appearance, so I will not repeat its parameters here, mainly to explore the camera effect of the Z20. The main dual-use design.

▲ Day proofs

▲Day proofs

▲ Macro details

▲Macro details

▲ Night proofs

▲Night proofs (turn on night shooting HDR)

After removing the front, the self-timer of the dual-screen phone is executed by the main camera. Of course this The scheme has advantages and disadvantages for the user. The disadvantage is that the mobile phone needs to be reversed every time the face payment and online call are needed, which will invisibly increase the steps of each face brushing; the advantage is that the high-pixel camera can provide absolute High-definition camera, plus super wide-angle, background blur, is equivalent to a set of high-profile self-timer cameras.

▲Sony a6400 micro order

Nubia often mentioned that it is a device suitable for live broadcast and Vlog when promoting the Z20. In this respect, I think the direction is correct. After all, there is a screen that is easy to watch and a lens with high quality. It already has the basic satisfaction conditions mentioned above for the two requirements (the mobile phone video still has a large noise problem, Vlog Shooting is recommended to access the headset). and this should also be the next marketing breakthrough for dual-screen phones.

Double-screen does not necessarily become mainstream, but it is indeed a Creativity

Whether in the past or today, dual-screen phones always feel like we are not in traditional cognition The mobile phone form, this device subverts the public’s impression of the candy bar phone, and also changes the user’s usage habits in the experience, whether it is the previous YotaPhone or vivo NEX 2, these two-screen mobile phones are not promoted at the time of promotion. Not promoting the role of the secondary screen.

How can they really change user habits? I don’t think so. If you want to change the user’s habits, you have to do more than you think. You can’t change the use of the manufacturer alone.Household habits can only play a driving role.

Really need to “convincing” users to adapt to new and new technologies, and also need to work with software Together to promote the entire dual-screen ecosystem, such as “Double-screen WeChat is more convenient than single-screen WeChat payment”, “Handling multi-tasking”… The advantages of dual-screen will benefit the daily life of users, and truly make dual-screen The role played out.

So is the dual screen phone a failure? I don’t think so. First of all, the dual screen is indeed a special solution for the current full screen era. It feels like the editor has asked you to write a topic within two days, and then you have to write high-end literature or grounding entertainment. The dual-screen phone is obviously the latter, because it does not take the usual path, but presents the article in another style.

In addition, dual-screen mobile phones have been developed so far, and they have indeed achieved a more diverse experience than a single screen. Whether it is ink-screen e-books, double-sided photos or multi-touch games, these are all It is a place to display the characteristics of dual-screen mobile phones.

Although this design may not be mainstream, it is true in the same single-screen phone It’s an idea. If you want to experience the “other side” of a smartphone, in addition to sliding and folding, a dual-screen phone may also be considered.