When it comes to Z4X screen less super TV, you should be familiar with it. After all, as early as June 30, 2015, Kimi launched this flagship product at that time. Although the official name is no screen TV, it is actually a smart projection product. Several friends also talked to me about its high picture quality and high sound quality. Today, we are lucky to be able to play at Lei Feng's website. Whether it is as recommended by our friends or not, let's explore the appearance, process, performance and other aspects together.

"Packaging design, surrounded by black and white, is consistent with the product design style"

At present, more and more manufacturers begin to attach importance to the packaging box that seems to be solely responsible for a one-time mission. After all, product packaging is the first display window and can also output its brand value.

The packaging box of Jimi Z4X adopts the style design with white and black as the main tone. The box surface is simple and clean, without redundant and tedious content, which is also consistent with the color matching design of the product itself. The protection is also in place. For example, the upper part of the box is pasted with a layer of protective sponge, the middle of the box is also covered with sponge for surrounding protection, and the accessories area at the bottom is classified by different boxes. The upper, middle and lower protection protects the host inside, ensuring the long-distance transportation safety of the Z4X to a certain extent.

The product manual of Z4X continues to be simple. From the protective sticker and partition card of the fuselage, you can generally understand the fuselage information, operating instructions, warranty regulations, etc. If you want to know everything in detail, you'd better check the website of Jimi. Other accessories, including power supply, remote control, adapter, hard disk fixing screws, mango VIP membership card, and some accessories will be introduced later.

"Appearance and appearance, modern world of black and white color contrast, love rubbing and sanding touch"

Jimi Z4X has a good recognition in appearance, which eliminates the stereotype boredom of traditional modeling and the difficulty of component layout caused by personalized modeling. On the basis of traditional modeling, Jimi is smart enough to add a touch sensitive area similar to a turntable, creating personalized functions and a personalized appearance.

The white square fuselage and the black turntable control area just echo the patriarch's "round sky and place" cognitive theory. The contrast between white and black, the interlacing use of straight lines and arcs, also conform to the theory of yin and yang balance. Therefore, the 196 * 196 * 50mm size of the Z4X is only a little larger than the palm, but it still creates a stable, safe, balanced and soft sense of vision.

The white body is made of engineering plastic, but after sanding treatment, the texture is greatly improved. It reminds me of a kind of sanded ceramic tile that I used at home when I was a child, and I also like the delicate and blocking feeling of rubbing. However, this kind of frosted white has poor protection ability against dirt and scratches, so we should take good care of it.

The black touch area is different from the white body. This part not only looks like a turntable, but also has similar texture and highlights on the surface. Singing sounds will come out of it in a trance.

The remote control of the Jimi Z4X is very small, covering basic commonly used functions. The feedback feel of the keys is also good, but there is no remote sensing function. It is a little inconvenient to keep pressing the keys up, down, left and right in some operations such as entering passwords.

"Detailed design, with careful consideration, also has some necessary points"

The first recognized detail design is the lens protection door designed by the Jimi Z4X. A simple physical push and pull action can open and close the "window of God", and provide adequate protection for the lens during daily carrying and placing.

The second recognized detail design is the configuration of USB 3.0 interface. Two HDMI interfaces, two USB interfaces, one AV interface and one LAN interface on the physical interface can also meet the general needs. In fact, I only need WIFI to meet them. However, USB 3.0 interface is still necessary. Loading high-quality movies on the mobile hard disk can guarantee the speed with USB 3.0. In addition, the 3.5mm headphone interface also supports SPDIF coaxial output. However, the tail has no special conversion wire verification.

The third recognized detail design is that a 2.5 inch solid state drive compartment is built in. Remove the three screws on the base and unscrew them according to the arrow on the back cover. The official warning that the mechanical hard disk cannot be put into it will affect the hard disk due to the vibration of the horn. With the built-in solid state disk, movie resources can be placed inside to facilitate the use of Z4X outside. Advanced users can also use Thunderbolt in the system to remotely download movies, and Z4X supports the protection of turning off the optical machine when downloading. In fact, the tail also thinks that the above is not true. I agree with a classmate who said that the best use here is to hide private money. My wife must not find it.

Introduced the identification points, as well as the slot points. When I first saw the back of the Z4X, I didn't find the threaded hole connecting the tripod. Do I need a high table for projection? When I saw the lifting adapter plate, I realized that Z4X did not put the tripod threaded hole on the body, but put it on the adapter plate, which finally solved the tripod problem. However, take a step back and think that the tripod is inconvenient after all. What if you really want to put it on the table? Is the placement not horizontal? The travel of the three screws at the bottom is too short to adjust the level. The trapezoidal correction of the system only supports vertical correction, not horizontal correction. It seems that in order to obtain the best projection effect, it is recommended to use a tripod in addition to lifting, which is convenient for height adjustment and horizontal angle adjustment.

"The system UI is simple and has content, scalability cannot be compressed, and stability needs to be enhanced"

The UI of Jimi Z4X is deeply customized and developed based on Android 4.3. However, both the interfaces and the setting options have got rid of the shadow of Android. Because the bottom layer is the Android system, you can actually understand that this is a TV box with its own projection screen, and its functions are similar to those of the current box. The interface classification of Z4X is simple and clear. The main interface is divided into four categories: film and television, music, games and applications. The pictures in this part are mainly displayed in gif dynamic pictures.

The main purpose of using projection is film and television application. Jimi Z4X has carried out strategic cooperation with Mango TV, and randomly provided 24 months of Mango VIP service, so that you can watch members' exclusive videos without waiting for advertisements. What should we do after two years? If you want to use it, I can tell you secretly that a certain treasure sells for several yuan a month. In fact, I'm still used to watching movies with TV Cats, VST Total Aggregation and other APPs, but now the management of XXX is too strict and useless.

Music is a major selling point of the Z4X, so music resources also occupy a large part of the UI main interface. This part of Jimi chose to cooperate with Baidu Music, and the selection of music is also very convenient. The classification of new songs, lists, radio stations or local music is very clear, and it is also good to listen to music quietly instead of watching movies.

In the game part, let the tail suddenly return to the childhood. Boxing King, Dinosaur Quick Strike, Small Tank, Metal Warhead, etc. are classic games. If there is a handle, it is also very nice to relive the happy time with the big screen.

When I saw the app, I even had a crying heart. The control was too strict. Only five or six apps, such as Ask Doctor and Buka Comics, could be downloaded. There was no browser, and the scalability was almost blocked. In addition, all downloads were from VST and other apps on the USB flash drive, but they could not be seen in the resource manager. I heard that this problem occurred after the latest system upgrade. I hope there will be a solution in the future. In addition, after upgrading the system, there were several program error prompts, and it is recommended to optimize it.

The setting interface is divided into six parts: network settings, Bluetooth peripherals, projection settings, general, user, and about. It is simple and intuitive, fully explained, easy to use, and has no threshold. In addition, Z4X also provides an electronic manual, which provides detailed graphic descriptions of various settings and operations for Xiaobai users.

Kimi Z4X also supports the use of mobile phones to control projection through the Kimi assistant APP. More importantly, it can use one key to display on the same screen and push pictures and videos from mobile phones to the projection screen, which is most convenient and useful for sharing some happy moments. On the APP, it is recommended to develop game adaptation functions. Although gravity sensing is supported, keyboard development efforts are not enough. It is recommended to select different keyboard modes according to different game types, such as racing and shooting simulation operations.

"The combination of video and audio, dual light path optical engine, Manhattan sound system, and impressive effect"

To talk about the effect of video and audio, let's focus first. If you are dizzy, you can't see anything. Jimi Z4X uses electric focusing, which can be manually focused through two buttons on the remote control. The official data is that the accuracy can reach 0.06 degrees. In the options in the settings, it is given that the focusing image can be accurately focused. The accuracy of the whole area is good, as seen from the effect after focusing. However, the tail is a bit obsessive-compulsive. During focusing, you always have to go back and forth several times to believe your glasses. The pictures in this part are all live pictures. There is no later stage, only the frame is cut.

In terms of hardware, Z4X is equipped with a 4-core 1.5GHz processor, 2G DDR3 storage, and 1080P, 2K, and 4K video playback is under no pressure. On the optical machine, the DLP projection technology of Texas Instruments is adopted, with a resolution of 1280 * 800. The dual light path optical engine enables the brightness to reach 580ANSI lumens, the contrast to 5000:1, the projection ratio to 1.2:1, and 76 inch images can be projected at a distance of 2 meters.

The following is a projection effect test. The test environment is in the bedroom with the lights off, not a full dark environment, because the bedroom door is open and the corridor light is on.

1. Color saturation test: the more beautiful and transparent the color, the better.

2. Gray scale restoration test, the smoother the color transition, the better.

3. Sample and complex scene test, mainly based on details and color restoration ability.

4. Blu ray video playback effect test.

5. Test the effect of turning on the bedroom ceiling lamp.

From the above test samples, whether it is static picture display or dynamic video appearance, whether it is a small dark room or a room with lights on, the Z4X has good color restoration, light and dark details, and dynamic images under the brightness guarantee of the dual light path engine, and is still satisfactory in micro intelligent projection.

In addition, no matter how good a play is, it needs sound to set it off. The sound system of Jimi Z4X is customized by Harman Carton. This brand is very famous and has its certification mark on Z4X. From the perspective of effect, the sound system performs well at all levels. As long as it is not too demanding, it basically meets most needs.

Speaking of sound, the Jimi Z4X can also be used alone as a music player when it is turned off, and it supports 3D gesture switching. You can directly switch songs in online Baidu Music by swiping your palm on the "black glue disc" of the body, and the sensitivity of action recognition is relatively high.

"Heat dissipation effect, details that can never be ignored, no too many heat dissipation holes, but the effect is good"

For the sake of product beauty, the Jimi Z4X does not open too many cooling windows on the fuselage, mainly focusing on the rear and bottom of the fuselage, and occupies a small area. For projection, which is a big heat producer, is it worth the loss to let the heat dissipation give way to the appearance? Or is Jimi confident in the heat dissipation ability of the product?

A heat dissipation test was carried out on the tail. When the room temperature was 24 degrees, after playing a movie, the temperature of each part of the fuselage was measured with the instrument as follows: the temperature of the upper part of the fuselage was about 34 degrees, the temperature near the lens was about 31 degrees, the temperature of one side near the heat dissipation hole was about 41 degrees, the temperature of the other side was about 35 degrees, and the temperature of the rear heat dissipation hole was about 51 degrees, The temperature at the bottom is about 37 degrees. From the results, the Z4X can effectively dissipate heat through the air duct design. It really has confidence in this aspect, and its heat dissipation ability is worthy of affirmation.

Concluding remarks

From the above tests, it can be seen that the advantages of the Z4X are its fashionable appearance, good details, simple UI, excellent audio and video, excellent heat dissipation, as well as the distinctive features of built-in solid state disk, gesture recognition, and WIFI audio. The disadvantages are that the white matte body is easy to get dirty and not easy to handle, the UI is not extensible enough, and manual focusing obsessive-compulsive disorder suffers. In general, the overall performance of Jimi Z4X is still at a better level.