At first, I also sneered at this kind of intelligent projector, because it mainly focuses on small size, LED bulbs, and the brightness is a barrier that cannot be overcome. Compared with the large projector, the brightness ratio of 1500-2000 is obvious. For a long time, I didn't think about projectors at all. I only thought about wall mounted LCD TVs. We have to admit that technology has developed too fast in recent years. First, TV boxes have become popular, then all kinds of smart TVs, and now even projectors have come to join in the excitement, especially domestic brands, are moving towards intelligence.

But now it is a rental house, and there is no reserved power supply. HDMI cable is a hard injury. Even if I put a box in the projector to solve the problem of video signal wiring, the power cable also needs to be involved (I don't pursue high-definition film sources, so the box video source+mobile hard disk provided by the device without lines to store video is enough for me). Therefore, I have been dragging on. Anyway, it is not just necessary.

Jimi is a popular brand among domestic intelligent projectors, and there are many models under it. In addition to the Z4Air seen in the store, there are Z4X and Z4 aurora, etc. Considering that Kimi has seen real machines and effects, while other brands are not obviously ahead of Kimi in terms of popularity, reputation, cost performance, etc., smart projectors basically consider this brand.

I'm very satisfied with this simple style of packaging. It has been fed by a lot of Internet brand technology products. Now, I can't stand the colorful luxury packaging boxes.

The first impression is very important. The appearance design of the Z4X is very good, and the top disc is also very distinctive. But， After a few days, I turned off the 3D gesture. I can't use this function, but it will cause misoperation when moving the machine.

The hard disk fixing screws * 4 (including 2 spare screws), and this detail needs another one. As said, the official recommendation of Jimi is to install SSD to prevent the mechanical hard disk from being damaged due to vibration, which is really not clear whether it is good or bad.

Accessories family photo. Compared with the Z4Air, which has its own battery, it would be better if the Z4X also supports or supports mobile power supply. My family's situation, pulling the power cord is very annoying

The three fixing screws are installed on the three holes of the adapter plate. Don't be afraid of losing them. It's good.

After the adapter plate is installed, the three knobs on the original body, which are also used as foot pads and horizontal adjustment knobs, can be reluctantly screwed into the storage position of the original fixing screws of the adapter plate for easy storage. The reason is that the rubber cap is relatively large, and the three caps are close together. If you rotate one of them, the other two will have a similar effect of gear engagement, rotating in the opposite direction

From the front, it's very beautiful. Irregular sound holes may also serve as air inlet holes, which were not carefully studied. I was not interested in the Harman/Kardon sound system. What's good about the horn integrated in the machine? Besides, it must be uncomfortable that the sound does not come from the picture. Unexpectedly, when I put the projector on the tea table and people sit on the sofa to watch the video, I found that the sound quality was good, and I didn't feel uncomfortable because I didn't think the sound came from the projector. I want to praise this.

Look at the big eyes of the projector. It's beautiful from this angle. Here we have to complain about the lens baffle. Originally, the design of the lens baffle as a mechanical switch was very good. One thing can be used for two purposes, but the feel of the baffle when it was opened and closed... Please, at least the official price of 3k is not good. There is no damping at all. It's just the feeling that one board is stuck in the slot. It's a failure.

At the rear are various interfaces and air outlets. When projecting, put your hand on the air outlet. The wind is warm, and it seems that it is very hot. However, the noise of the fan is well controlled, which basically does not affect the viewing. Sitting a meter away, you simply cannot hear it.

The input part has two HDMI, one AV, one USB3.0 and one USB2.0. Personally, I think it would be more convenient to provide an HDMI output? In addition, why not provide two USB 3.0 directly?

The output part is mainly a headphone port, which will not disturb the family even when watching movies alone.

In general, I can give 90 points to the shape of the Z4X, but the loss is the feel of the lens bezel. The adapter is a functional loss of points. Please pass.

A brief summary of the experience of using the polar meter system will not be expanded. The speed of starting up and entering the system is very good, and you can enter the desktop within 20 seconds, which means that advertising is in the way; The third-party APP needs to install the "no screen assistant" APP on the mobile phone, and then push it to the projector for installation; If the app you want (such as Dombey) can't be found in the market of the apps provided by the non screen assistant, you can download it and put it on your phone first, and then select APK to install it. The built-in resource manager can successfully access the mobile hard disk storage of Xiaomi router mini.

Turn off the lights at night, the effect is OK, the projection brightness is enough, very satisfied.

I don't know why we didn't make it 16:9. Now many films are 16:9. Although the official legend says that 16:10 is compatible with 16:9, and the projector screen can still be used in the future, in fact, if the 16:9 projector is replaced, there will be white edges exposed above and below the screen, which will affect the visual effect.

The Z4X has a resolution of only 1280 * 800, and a friend reminded me that the scheme used by this intelligent projector is diamond pixels, and the effect is not good. Xiaobai is the only one who doesn't understand this very well. He feels that there is nothing wrong with sitting far away. Stand close to observe, and now understand. Look at the picture. The edges are jagged and the image particles are very serious.

Take another two pictures. On the left, the purple edge is more serious, and on the right, there are diamond shaped serrations. The problem of diamond pixel text display is more prominent. After all, there are more text vertically and horizontally, while diamond pixels are zigzag vertically and horizontally.

Fortunately, the actual projection is far away, and our requirements are not high, so the impact can be ignored. If you care, you'd better choose 1080P resolution (the H1 just came out is 1080). Of course, it's better to use a large projector.

This is a picture of deliberately adjusting the projection image to a trapezoid by trapezoidal correction. As you can see, the light band has widened. In other words, the lighting area of the bulb has not changed, but the picture has become trapezoidal.

This is a picture taken by using the stepless zoom function to intentionally reduce the screen size. The light band is more obvious. The same reason is that the lighting area of the bulb has not changed, but the picture is smaller.

If the trapezoidal correction or stepless zoom function is used in the full black environment, the phenomenon of "light leakage band" will be obvious. As a result, the trapezoidal correction or stepless zoom function is visually imperfect. I didn't want to do this, so I had to try not to use the trapezoid correction and zoom function... I cried to death.

summary

advantage:

1. The brightness is basically enough. It's OK to see it at night. It's acceptable to pull the curtains in the daytime

2. The built-in Android system is fast and easy to use

3. Good appearance and low noise

4. The projection is relatively small, suitable for users who want to project large sizes from a short distance

Disadvantages:

1. The lens cover is too poorly made, and the adapter plate is not very convenient

2. 720P resolution+diamond shaped pixels, destined to be far away rather than near

3. 16: 10 odd flowers picture proportion