On February 27, Sony released four machines in MWC 2017: XA1, XA1 Ultra, XZs and XZ Premium. In addition to Sony's strange naming rules, Sony finally broke out on the high-end XZ Premium: Snapdragon 835+4K screen supporting HDR+19 million pixel sensor embedded with DRAM.

appearance

Almost all mobile phone manufacturers will change the appearance of new phones, but Sony's new phones of so many generations look very similar. But the advantage is that, You can see at a glance that this is a Sony mobile phone... Waterproof and dustproof is the tradition of Sony flagship for many years, and Xperia XZ Premium must also have it. This time, it is with the protection level of IPS68.

Sony added arc transition to the edge of the machine, which improved the feel of the machine to a certain extent. The top left side of the fuselage is Sony's iconic SIM/microSD card slot cover (waterproof), and the right side of the fuselage is the volume and power button integrated with fingerprint identification (the version sold in the United States does not have fingerprint identification, and for users in the United States, a machine with a price of up to $900 may not have fingerprint identification, which will be sentenced to death).

It is also equipped with a rare shutter button. This layout is almost the same as the Xperia XZ we saw last year. This is because the volume and power buttons have changed positions. The front is really the same as the XZ, especially the dual speakers. The flash and sensor on the back have changed from vertical to horizontal, and the position of the camera is higher.

Xperia XZ Premium is still a machine you don't want to touch. On the one hand, it is too beautiful, and on the other hand, the mirror is too stained with fingerprints. Unless you carry a cleaning cloth with you, it is difficult to keep the shiny and clean mirror surface. Even though Xperia XZ Premium uses gorilla 5 glass, the flat glass back cover is bound to have many small scratches after a long time of use.

4K screen regression

Two years ago, Z5 Premium first launched a 4K resolution screen, but soon we found that this screen seemed to have no practical value. Z5 Premium even the system itself does not use 4K rendering, but only when watching pictures and videos, 4K will be fully open. Users' inner OS will inevitably think: What's the use of the pixels we pay extra for?

On Xperia XZ Premium, Sony has finally given more space to the 4K screen. Although the game is still rendered in 1080P, the system rendering is already done in 4K. The system can take advantage of this incredibly high pixel density. You can see the details that Android has never shown on it.

Although it is not the first 4K screen phone, it is the first 4K screen phone with HDR. The 5.5 inch 4K screen of Xperia XZ Premium has higher brightness and supports HDR (high dynamic range), which allows us to see more vivid and beautiful pictures. But even Netflix abroad does not have corresponding 4K HDR video content, and the situation in China is even more exciting

Won Qualcomm's strongest SoC and the latest system

Xperia XZ Premium has a screen with such an exaggerated number of pixels. Sony can use Snapdragon 835, one of the strongest SoCs at present, which is naturally a good thing. Xperia XZ Premium is probably the first mobile phone manufacturer to receive 835 products besides Samsung Galaxy S8.

The performance of the new Adreno 540 GPU is much better than that of the Adreno 430 on the Snapdragon 810. The 835 has VR support, higher LTE speed, and stronger ISP. In addition, Sony also claims that the powerful performance of the 835 will not cause too much pressure on the battery.

The system is the latest Android 7.1.1 nougat, The features of the new system make the 4K screen less difficult than before. You should know that Z5 Premium could not even take full resolution screenshots in those days But Sony's "skin" is still unchanged. However, the system is still very light and responsive. For Sony, which does not have much "soft power", it is unlikely to handle the institutionalized system like Samsung. Instead of making half a bucket of water, Sony would be better not to do it at all.

photograph

present In the flagship phones we see, their camera sensors are almost all works of Sony, but ironically, Samsung LG、 Apple, which uses Sony sensors, performs better in photography than Sony.

Like several recent manufacturers, Sony is keen on improving the focusing performance compared to the image quality. stay Xperia XZ Premium Sony has inserted a new sensor called "Motion Eye", 19 million pixels, 1/2.3 inch. Although the number of pixels has slightly decreased, the size of the unit pixel has been improved, reaching 1.22 microns (the same size as the iPhone 7). A larger pixel size can bring better weak light imaging effect.

Sony has added independent DRAM to this sensor. This DRAM placed between the sensor and the mobile phone memory can not only realize 720P@960 In addition to the ultra-high frame rate slow motion video capture of frames, Sony can also perform what it calls "predictive photography" - a shutter response five times faster than the previous Sony mobile phones. When the shutter is pressed, the phone can immediately record the picture, without the previous kind of stuttering and delay. However, Sony's 5-axis anti shake is still electronic anti shake. The shutter structure of "anti jelly effect" claims to better capture moving objects, but what it is actually is unknown for the time being.

Battery and endurance

When it comes to large screen mobile phones, the first impression is the matching large battery. Our expectation for Xperia XZ Premium is that there should be at least 3500mAh batteries, but Sony actually only gave 3230mAh. In front of the 5.5 inch 4K HDR screen, this capacity is estimated to be a little difficult.

Sony stressed that it has given a lot of battery optimization, but another potential "threat" to batteries is Snapdragon 835. Although Qualcomm claims that its energy efficiency has improved by 25%, Qualcomm's PPT energy efficiency can only be confirmed after real machine testing

Price and summary

Sony's mobile phones, especially Sony's flagship phones, have felt like the wrong technology tree in recent years. The Xperia X Performance of the previous generation is an example of failure. This generation of Xperia XZ Premium has finally returned to the right path: the strongest SoC available, the top sensor with DRAM, and the highest resolution mobile screen on the planet.

In terms of price, Xperia XZs, the "little brother" of Xperia XZ Premium, will land in Amazon and Best Buy on April 5, with a price of $699.99, while Xperia XZ Premium is likely to sell for as much as $900. Of course, stacking is very simple for large factories, but if the pure top hardware is not well balanced, it is easy to give people the feeling of semi-finished products. and Xperia XZ Premium Will it be a machine worthy of the top reputation? It will take several months to get the results.

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