First of all, today brings us a comparative evaluation of two popular portable projectors. We try our best not to be biased towards one party, but strictly follow our needs for projectors. The main direction of the evaluation is: preface: company background; 1. Product appearance, size and interface; 2. UI optimization and system performance; 3. Projection effect comparison; 4. Heat dissipation contrast; 5. Characteristic function; Wait to evaluate stupid articles. This article uses two engineering machine products, which cannot fully represent the performance of mass production machines.

preface:

When it comes to projector manufacturers, if Kimi is "Xiaomi" in the projector industry, then God Paintings must be "Huawei" in the projection industry. There are countless relationships that are difficult to explain clearly; First, let's have a brief understanding of the background of the two companies;

Jimi Technology Company: established in November 2013; In August 2014, Jimi Technology obtained a large amount of financing of 100 million yuan; In June 2015, GIMI Technology obtained another strategic investment worth 300 million yuan from Mango Media's Pre-B round; In just two years, the products of Jimi began to appear widely in front of the public. Representative works: Jimi Z3 series; Jimi Z4 series, multiple products; The price ranges from 1999 to 2999. Focus on mini projectors.

Shenhua Technology Company: established in August 2010; What is different from Jimi Technology is that Shenhua is an independent research and development company, which independently developed the world's first "intelligent interactive projection television" in May 2011. The next year, it independently took the lead in launching the world's first "smart phone projection virtual touch screen". Its representative works include: Shenhua X series, Shenhua Y series, and Shenhua Z series, with prices ranging from 1799 to 3999. It focuses on human-computer interaction.

Summary of company background: The two companies started differently. Shenhua has more long-term operating experience and R&D strength, and has considerable authority in the projection industry in China. Jimi has better network promotion and fresh blood. From the perspective of company background, they can represent one side of the force. Contrast with it.
   

1. Product appearance and size;

Packaging: From the perspective of packaging, the two are opposite to the previous metaphor. Jimi Z4 Air is more like the practice of "Huawei", and the outer packaging gives a feeling of careful design. However, the divine painting is relatively standard, and there is not too much packaging design for the divine painting Z1, which is a bit like Xiaomi; Aesthetics or cost control, let's look at the products;

Accessories: There is not much difference in the accessories attached. Shenhua Z1 needs an additional data cable, which is mainly used to charge the remote control. Both of them have 3D glasses as an extra product.

Product appearance: It can be clearly seen that the divine painting Z1 (160 × 98 × 30mm) is smaller than the polar rice Z4 Air (214 × 113.5 × 23.5mm). The divine painting Z1 has design feet on the four corners, so the thickness is 6.5 mm thicker than the polar rice. In front comparison, it is found that the lens cover is not designed for the divine painting Z1, but it is better for Jimi than for the divine painting. The lens cover is designed to avoid contacting the lamp cap. The feature of Shenhua Z1 is that it has two lenses, which is also the unique feature of Shenhua. Automatic focusing and signal reception are realized in the main function room of the secondary lens beside the main bulb. This feature will be mentioned later. There are mesh openings found in the signature part of both projectors. Each time this is a cooling hole. When the projector is working, the light bulb will bring relatively large heat, so heat dissipation has become an important part of the projector. It can be seen from the figure that the heat sink of the divine painting is relatively concentrated, and the external radiation is also concentrated in it. However, it is worth mentioning that the bottom is also provided with a heat sink. The polar meter is divided into two parts, which are relatively dispersed, helping to dissipate heat.

There are not too many elements designed on the side of the two products. The Jimi Z4 Aix has a manual focusing wheel on the right. Since the divine Z1 is automatic focusing, it is unnecessary to design physical manual focusing. There is not much difference between the two interfaces. They both have: power interface, headphone interface, usb interface, high-definition interface. One USB 3.0 interface is added to Jimi to facilitate the connection of mobile hard disk. The small body of the god painting Z1 has an additional 64GB TF card expansion support to compete with it. No one has the advantage in this round. As a portable projector, it is quite comprehensive.

It's the first time that the remote control has learned so much. The remote control is just to switch on and off. What's the role of switching off the movie source? Of course, the Z4 Air is really an ordinary remote control. It looks like we used Huawei box remote control. However, the remote control of Shenhua Z1 is too particular. The virtual touch interaction technology of Shenhua Z1 really made the author feel the pleasure of interactive technology, and typing no longer needs to roll the virtual keyboard back and forth. Remote control is definitely one of the selling points of Shenhua Z1. How good it is. I can feel it only after I have experienced it.

Through the appearance and simple comparison, it can be concluded that: in terms of material, Jimi adopts the integrated CNC processing technology, the divine painting Z1 is a metal frame, and the upper panel is a color changeable panel; In appearance, Jimi is better than others; In terms of portability, it is obvious that the extremely small Z4 Air can only be said to be portable at most, which is not appropriate for online pocket portability. In comparison, the divine painting Z1 is more suitable for the title of pocket projector. Other aspects; Jimi is protected by a lens cover while the divine painting Z1 is not. The divine painting Z1 has four feet at the bottom, which is better placed on the plane and also conducive to heat dissipation. In terms of hanging, Jimi Z4 Air does not have a lifting hole designed, so it has poor initiative in lifting. Shenhua Z1 has a lifting hole with an aperture of M6. More reasonable design. In such a round, both have their own characteristics and advantages.


2. UI optimization and system performance

System optimization is an important part of an intelligent product, which is directly related to our sense of experience, so a good UI can attract more users' attention. Have a better sense of dependence.

First of all, both systems performed well. There was no too bad use of the original Android system, which was the result of careful optimization. On the left is the screenshot of the divine painting system, and on the right is the screenshot of Jimi. The two systems are both Android systems. Careful netizens will find that there is a power icon on the interface of Jimi, but there is no god painting. Obviously, god painting is worth optimizing. From the perspective of the whole interface, God Paintings can be regarded as a standard and rich film and television resources, and from the perspective of the main interface of Jimi, the commercialized atmosphere is particularly strong. All the people who have used Mango TV know that old films have to be charged. This is an era of information sharing, and paid software is no longer popular. Of course, this is directly related to the 300 million yuan investment that Jimi received from Mango TV. Who will not do their advertising. Fortunately, we installed live TV software based on Android system and searched a lot. You can completely ignore the charges of the original UI. But then again, the comparison is a comparative evaluation. In addition to the fact that there is no designed power display, the other parts of the divine painting UI are better than the Jimi. Mango TV is obviously a drag. Other aspects of the system are similar to the TV box used by everyone. It also supports screen projection, installation of applications, etc.

Since all the systems are based on Android, let's run a score. It's really the first time for Android Rabbit to run a score on the projector. In fact, the score is related to the ability of hardware and the optimization degree of the system UI. God Painted Z1 has achieved 3.6W+for the first time, while the backward hardware Z4 Air has also performed well. The 1.3W+score is enough to meet the demand for video playback.

3. Projection effect comparison:

Through the comparison between the parameters (left god painting, right polar meter), the difference between the two is not big, and the brightness of 10 lumens can not be seen by the naked eye.

After comparison, there is still some difference in visual sense. The projection ratio is 1.66:1 compared with the divine painting Z 1; Jimi Z4 Air projection ratio: 1.2:1; What is directly reflected here is that the projection size is the same, and the divine painting needs a longer projection distance. There is no visual difference in other aspects, and there is no obvious difference in clarity. It is worth noting that both products are powered by their own batteries. The built-in battery of Shenhua Z1 is 8500mAh, and the built-in battery of Jimi Z4 Air is 13600mAh. In terms of endurance, Jimi Z4 Air is better, and the endurance of both products is more than 90 minutes. It will change due to different environments.



4. Heat dissipation comparison

All of them are engineering machines. This heating data is just a comparison of engineering machine data, without rigorous evaluation. The room temperature is 27 degrees Celsius, and the test point is the surface temperature of the heat dissipation outlet.

First of all, in terms of noise, the sound of the two engineering machines, the Jimi Z4 Air, is lower than that of the cooling fan. The official data also mentioned that the noise decibel of the divine painting Z1 is ≤ 35dB, while the Jimi has a larger body, and the noise decibel is<30dB. Obviously, the Z4 Air is quieter. The highest temperature of heating has reached a constant value: about 49 ℃. The two performances are the same.


5. Characteristic function, summary;

A product must have its unique characteristics if it wants to be based in the industry. At the end of this article, the author also briefly summarizes some characteristics of the two products, and hopes that the manufacturer can have a new idea for the next generation of products;

The ultra meter Z4 Air is featured by its appearance and cost performance. CNC overall processing technology, sand blasting, very delicate workmanship. Small projection ratio enables smaller space to obtain larger projection size. Although there is no pleasure of auto focusing, there is also the accuracy of manual focusing. The lens cover is designed to be portable, so there is no need to worry about lens damage. The direct criticism of not designing support feet is that the non-metallic panels at the bottom are severely worn and not conducive to heat diffusion. There is no lifting hole design, and the lifting can only be completed with a specific fixture. Overall performance is inferior to that of the Z1.

God painting Z1, the main performance and exclusive technology. The configuration is twice as powerful as the Z4 Air. The auto focus technology is mature, and the virtual touch technology is a bright black technology. It integrates the advantages of Shenhua Company. Obviously, as a portable projector, the design without lens cover is missing. The workmanship is slightly inferior to that of the Z4 Air.

Summary: As portable projectors, the two products obviously have a need for battery standby. If they can support external mobile power, it would be perfect. I don't want to lose my interest in watching movies with my younger sister when there is no power. Of course, this may be a problem at present. As a consumer, we hope to see a more perfect solution. The positioning direction of the two products is slightly different. The Z4 Air has a better appearance. Although the divine painting is also good, the CNC technology of the Z4 Air has a certain degree of awareness of the user's aesthetic on the mobile phone. However, the hardware performance of Shenhua Z1 and the auto focus have been virtual touch, pushing Shenhua products to a peak. At least for the time being, there are not many projector companies with auto focus patents. Shenhua counts as one, and the virtual touch is known as the first model in the world. As for the authenticity, it can not be accurately confirmed. At least this time, I have experienced it, and I feel good. As a rising star, Jimi Z 4 Air has a good market share, which meets the needs of watching movies. It is not particularly outstanding but enough to cope with various environments. The appearance of taking it out is very high, just like taking a large and beautiful mobile power supply. The price that everyone cares about most is limited to 3000 yuan. The price of less than 3000 yuan is very cost-effective. Of course, it is still a real problem to watch movies under the strong light of the projector in the daytime. We still need to be treated rationally. Then the question arises: are both excellent products, should we choose the more mature "Huawei (God Painted)" or the more explosive "Xiaomi (Jimi)"? In fact, there is no right or wrong choice. After all, the market has proved that feelings can also be sold for money!