Video presentation

Before the article starts, let's take an MV video to let you feel the sound quality and picture effect of the Z4 Aurora, a TV without a screen. Because the editor uses a mobile phone to record, the actual effect is somewhat discounted. Sorry.

Introduction

With the continuous development of science and technology, intelligent projection is widely used in people's life and work as a new video and audio playing tool; Various types of projections can be seen in the living room, office or some leisure places at home. People use it to watch movies, TV plays or make presentations instead of TV. Looking at the market, most of the projection products have been developing towards intelligence, portability and commercialization. I think that only with beautiful appearance, clear imaging quality, perfect sound effect and convenient control functions can they be competitive in the market of similar products and be favored by consumers.

The Z4 Aurora, a TV without screen, is another masterpiece created by the company after the previous generation of Z4X projection, based on the concept of product performance improvement and user play diversity. The new generation of Z4 aurora has not only enhanced the brightness of the image, but also added the higher left and right trapezoidal correction function, so that the use of the projection environment is no longer limited; In addition, the appearance of Evoque continues the previous black glue style, and the classic feelings are inherited. What more unique and novel features does this projection have? Next, let's go into this evaluation trip together with our editor.

Open box display

The Jimi Z4 aurora adopts a very tall black gift box packaging, which is more low-key and calm than the previous white box of Z4X. On the front of the gift box, there is only the product logo of "Z4 Aurora", and the surrounding color stripes are very beautiful and eye-catching under the light.

The packaging box is opened in a three part modular folding way. The rose gold top cover and mysterious black shell highlight the noble atmosphere. Such luxurious product packaging has really made Xiaobian fondle playing with it for a long time, which also shows the great dedication of the company to this product.

The Z4 aurora projector was wrapped with thick foam foam, effectively preventing the product from being damaged by collision during transportation.

In addition to the projection host, the product also has a use instruction card, power adapter, power cord, triangular bracket adapter, two 3D glasses, all metal remote control, and a mango TV VIP member exchange card worth 720 yuan; Two shutter type 3D glasses worth nearly 400 yuan and a metal texture remote control have become the main highlights of the accessories, which will be introduced in detail later.

The front and back of the Z4 aurora projection show that the fuselage surface continues the Z4X classic black glue style elements, and the fuselage shell is changed from pure white to twilight gold; In terms of color contrast, there is less strong color difference and more warm feelings. Even if it is not used on weekdays, it is a work of art to put the projection on the sofa, desk and tea table at home.

The overall dimension of the product is 196 * 196 * 50mm, and the weight is 1.2kg; Relatively speaking, the portable performance is inferior to that of the other product, Mango Xiaomian, but it will not occupy much space in the living room and bedroom.

From the perspective of the parameters and specifications of the polar meter Z4 aurora, the difference from the previous generation Z4X product is that the lumen brightness is increased from 580ANSI to 600ANSI; ± 30 degree adjustment function is added to trapezoid correction parameters. In addition to these, the parameters are basically the same as those of the Z4X. However, in terms of software systems and additional features of accessories, the Z4 Aurora is still much more cost-effective than the Z4X. For example, the business UI mode, 3D glasses and the new experience of metal remote control are convenient for office work.

Detail display

The projection machine is equipped with a 4-core 1.5GHz Mili-450mp4 processor, 2GB DDR3 memory and 16GB high-speed flash memory, and supports H.265 hard decoding. Both processing speed and film quality can be compared with the ten thousand yuan projection equipment. In addition, the projection supports the electric focusing technology, which can quickly and accurately adjust the focus. What we need to do is touch the button on the remote control.

Jimi Z4 Aurora retains the design that the dust cover of Z4X product lens and the key switch of the power supply are combined into one. After the power supply is connected, slide the lens cover to the right to trigger the startup action. However, the small editing test cannot use the lens cover to shut down the machine. In view of the ceiling installation mode of projection, it is still felt that the automatic opening and closing of the lens cover should be realized, so that users can use it more conveniently.

Lens is often the first focus standard when users choose to purchase projection. The Z4 aurora adopts high transmittance coated lens, and the lumen brightness reaches the international standard 600ANSI; At the same time, it can reach 1280 * 800 physical high-definition resolution and support 4K ultra high-definition film resources, with a maximum of 300 inch large screen projection. Aurora uses the German OSRAM LED light source, which is characterized by non radiation and no eye damage. The data provided by the government of Geemi shows that it has been used for nearly 30000 hours, and users do not have to worry about the service life.

In addition to the excellent effect in picture quality, the performance of Z4 Aurora in sound quality is also impressive. The Harman/Kardon professional sound system equipped can match the sound effect of Harman series on the market. Whether watching movie resources or listening to audio files, a dual channel stereo speaker unit is designed through the interior of Aurora, which can deliver the voice that touches the heartstrings most.

The interface layout at the rear of the fuselage is almost the same as that of the Z4X, including RJ45 wired network interface, power input interface USB3.0/USB2.0、 Two HDMI interfaces, AV video input, 3.5mm audio output and RESET production recovery button. At the same time, the built-in 2.4G/5G dual band WIFI and Bluetooth modules greatly enrich the external connection capability and peripheral support of the Z4 aurora. In general, the design of each interface is fairly standard. What is worth mentioning is the provision of USB interface, which allows us to easily read the data of external storage devices. In addition, many peripherals also need to use USB adapters to complete docking.

The left part is the position of the machine's heat sink. During the operation of the Z4 Aurora, all the hot air is discharged from the machine. We can imagine its importance. Let's take a look at the details. It is estimated that many small partners seldom notice that there are many metal heat sinks in the machine, and the details often determine the final quality of the product.

The vinyl disc on the front of the machine integrates more retro feelings into the product. The logo part of the central polar meter is a power button for switching on and off the Z4 aurora by long press. At the same time, when simply playing music, you can switch songs and adjust the volume by waving a gesture above the black plastic disc.

The wire drawing process of the disc panel is clearly visible, revealing a classical beauty under the sunshine. The distance between the disc and the fuselage shell is also relatively small, and the proportion is symmetrical.

The LED power status indicator on the edge of the black glue disc, as a similar design to the phonograph head, has evolved the black glue style into a spiritual symbol of pursuing perfection. The user can judge the working state of the machine according to the color of the indicator light, which is very convenient for the prompt of power on and power off.

The four corners around the machine are all designed with arc bevels, and the lines are naturally rounded. Because of its portable size, the Z4 Aurora shows a classic beauty and business style whether it is placed on a desk or bookshelf or matched with surrounding scene elements.

Highlights

I mentioned earlier that compared with the previous generation of Z4X products, the Z4 Aurora, a non screen TV, not only continues many classic design styles, but also has qualitative changes in accessories and functions. Next, let's enjoy the highlights of the Z4 Aurora.

1、 All metal remote control

Compared with the plastic remote control of Z4X, the new generation of remote control used by Z4 Evoque is made of magnesium aluminum alloy and processed by sand blasting process. Both the texture of the hand and the aesthetic appearance are enough to satisfy users. The layout of the buttons on the surface of the remote controller and the degree of bulge are very reasonable. The functions of Bluetooth remote control without dead corners, electric focusing, voice control, flying mice, gravity sensing and other practical functions are added to achieve perfect control of projection. In terms of battery, the power supply mode of button battery is abandoned, and the USB charging mode of lithium polymer battery is adopted, which has new characteristics of environmental protection, efficiency and convenience.

two 、 3D shutter glasses

The two 3D shutter glasses included in the accessory can not only be powered on and off in real time through the switch button on the top, but also can be charged and maintained using the USB connection cable. The Z4 aurora not only supports 3D movie playing, but also supports the 2D to 3D function. With 3D glasses, users can enjoy the shocking 3D blockbusters at home. The glasses' frame and nose rest are comfortable to wear. The drawback is that the inconvenience of myopic users is not taken into account. It is recommended to add 3D glasses with clothes clips.

3. Left and right trapezoid correction

The newly added left and right trapezoidal correction function of the Z4 aurora is shown on this machine as a major highlight. The technology originally only available for the 10000 yuan level projection equipment is applied to the aurora, which will undoubtedly improve its cost performance. Through the trapezoid correction option in the system, the position and proportion of the projection picture can be adjusted at the vertical ± 35 degrees, left ± 30 degrees and right ± 30 degrees. In this way, users do not need to place the projection in front of themselves every time to watch the movie. Even if they place it on the edge of both sides, they can enjoy the same picture effect as the front projection.

four 、 3D gesture control

3D Gesture control, as a major selling point of Z4 Aurora, undoubtedly once again demonstrates the technological elements contained in the machine. Through 3D gesture recognition chip, the movement track of the palm is keenly recognized. When playing songs, it does not need to use the auxiliary equipment of the remote controller to directly wave the gesture to cut songs, and rotate the fingers clockwise and counterclockwise to adjust the volume; With a new concept, the humanized design effect is achieved. Users can control the adjustment of the machine as if they were magic when sitting on the sofa.

five New business UI

Although the systems of the Z4 Aurora and Z4X are the same, the added business version mode switching further expands its application mode, making business office more efficient, and PPT speech, PDF/WORD file browsing become very convenient. The business UI mode supports the opening and playing of various WPS OFFICE documents, which greatly facilitates the use of office workers to make reports and speeches. Not only that, the software also supports simple online editing. If you connect a keyboard type external device well, it is almost equivalent to a portable computer.

6. Voice control

For the new generation of all metal remote controller, the system has made in-depth development of voice recognition, somatosensory flying mouse, gravity sensing and other functions, and has a more flexible and cool effect on the game experience. At present, the smart projection market and the remote control accessories of major smart TV brands basically support voice control mode, but the speed and accuracy of voice recognition of many remote controls are not commendable. I think the remote control voice of Z4 Aurora is better than Siri in Chinese. As long as you say the command that the user wants to operate, you can basically quickly and accurately recognize and reply; Through personal testing, the system can answer questions like weather, on-demand film crosstalk works, and menu queries, which helps users get rid of tedious remote input to the greatest extent.

seven 、 2D to 3D function

The newly added 2D to 3D function of the Z4 Aurora of Gemi can easily convert ordinary 2D movies to 3D stereoscopic perspective for playback. Although the effect may be slightly worse than that of pure 3D movies, it must be very enjoyable to imagine that ordinary video resource files can be viewed in such a fresh way.

8. Massive Mango TV Resources

Because it is a product that cooperates with Mango TV, its legitimate authorized film and television content can be broadcast on demand. It has 300000 hours of Mango TV's massive film and television resources, 10 million music library resources, and 24 hours of Mango TV's VIP content, and maintains real-time updates. You can watch more high-definition film and television resources at the first time through the additional 24 month VIP member exchange card.

Installation and use

Z4 The back cover of Aurora is detachable. Unscrew the three fixing screws and rotate the back cover clockwise to separate it. The red and green dot marks as well as the tips of the rotating arrows are also very considerate, facilitating the disassembly and installation. In addition to a visible cooling fan, the back cover compartment can also be installed with a 2.5 inch SATA solid state disk, which is equipped with the built-in "Thunderbolt Remote Download" function of the projection new GMUI system. Whether you are working in the daytime or away from home, you can directly download and store your favorite movie and television resources to the hard disk, and you can watch them off the network when you return home, There is no need to worry about being restricted by the network speed.

The use and installation method of the tripod adapter plate is very simple. Unscrew the three original screws at the bottom of the projection, and align the adapter plate with the screw hole for fixation. We can fix the projection on the floor bracket, lifting bracket or desktop bracket, which greatly increases the use environment of the projection. I suggest you go to the official website to choose the appropriate bracket type according to your actual needs. Whether you put it in the living room or study, it will become a beautiful scenery.

Z4 The USB interface behind Aurora can be directly connected to storage devices such as USB flash disk and mobile hard disk, which can realize the local play of film and television audio files and the opening and access of internal office files; In addition, the USB 3.0 interface also provides the guarantee of transmission rate.

Like the Z4X, the Z4 Aurora has no built-in battery structure, and must be directly connected to the power adapter when in use. Many small partners may wonder why Z4X and Aurora do not have built-in batteries like Mango Xiaomi. I think these two products are mainly for home, office and business use, while Mango Xiaomi is relatively more portable, and its own products cannot contradict each other. When starting up for the first time to use Aurora, you need to pair the remote control. The whole process has a detailed graphic display, and the user can operate step by step according to the prompts.

System display

Z4 The system carried by Aurora is the GMUI based on Android 4.3. From the actual use experience, this system has many design highlights and runs smoothly. Compared with many network set-top boxes, GMUI combines the projection features to make use more convenient. Projection Night The picture is gorgeous and just right in brightness. You can select different channels according to your preferences when you enter the home page, including music, games, applications, system settings, mango TV and other options.

The content of the video section is relatively rich, including films, TV dramas, variety shows, anime, documentary and 3D film resources. From the film and television works loved by adults to the animation and children's channels loved by children, Z4 Aurora Screenless TV has really achieved a wide range of content. However, at present, it seems that the competition in the content of mainstream brand intelligent projection has become white hot, and they are extremely introducing how rich and colorful the resources of their own brands are, but some of them are really beyond their name.

Audio resources are authentic music libraries authorized by Baidu Music. Users can directly listen to their favorite music online according to the new songs, lists, topics and other sections provided by the system, and enjoy the beautiful audition feast before the built-in Harman/Kardon professional audio system. In addition, the 3D gesture cut song mentioned earlier can also be perfectly displayed here.

As an intelligent projection, the experience effect of entertainment games is also extremely important. Z4 Aurora can directly control some simple small games through the remote control, such as classic games such as Happy Run, ball games, etc; Of course, it can also be combined with the somatosensory remote control or X-BOX game controller, and you can also try some more exciting games, such as racing cars, gunfight and shooting. As far as game resources are concerned, I think there are still a few. The game playability in the system is not very high. I hope that the game content can be optimized later.

The content of software application is really less, and it is also some basic practical software. If you want to try and experience more content, you still need to download and install it through third-party software. The installation method can be downloaded from the mobile phone and installed via the remote connection of the polar assistant, or it can be copied and installed via the USB flash disk storage device.

In the setting function, you can operate the network, Bluetooth peripherals, projection settings, general settings and other related systems. Users can set selectively according to their actual needs.

The system of Jimi Z4 aurora screen less TV has added a quick adjustment mode. During the viewing process, long press the menu button on the remote control to call out a rotating menu, and selectively adjust the LED brightness, image mode, picture proportion, 3D effect, trapezoid, sound output, and sound effect modes. There is no need to adjust in the system settings, which reduces the trouble of switching back and forth the playing interface.

In addition, for the new generation of all metal remote controller, the system has made in-depth development of voice recognition, somatosensory flying mouse, gravity sensing and other functions, which has made the game experience more flexible and cool.

Picture projection comparison

We must see that you have a better understanding of the appearance and system of this machine. What is the projection quality that users are more concerned about? What effect can 600ANSI lumen brightness bring? Xiao Bian compared the effects of multiple sets of original high-definition 4K pictures and polar Z4 projection, and did not do any other beautification except cut the size of the picture. In order for my friends to see a better projection effect, Xiao Bian used a 72 inch white plastic screen in the dark room at night. (PS: The top of each group of pictures is the original picture, and the bottom is the projection picture)

1. Natural Scenery

The red maple leaves are slightly deepened on the polar Z4 projection, and the overall light is also somewhat dark. I want to explain that the projection effect is intuitive and looks much better, and the quality of the image taken by the camera will inevitably lose some.

It can be seen from this picture of mountain vegetation that the projected color of the picture is somewhat distorted, especially the fog blur effect of the distant mountain is not sufficiently colored, but the picture is very clear.

The projection quality of this purple picture should be said to be perfect. The afterglow of the setting sun and the undulation of the waves and other details are intact, and the overall color is quite close to the original picture.

The blue sky, the green sea water and the white spray are matched naturally, and the color saturation ratio is symmetrical. In addition to the slight lack of brightness, the overall picture quality is high.

We can see that the projection quality of this group of white highlights has greatly improved compared with the previous groups in terms of image brightness. Of course, this has a lot to do with the camera imaging. In general, the performance of the Z4 aurora in terms of natural scenery is very satisfactory to Xiao Bian. In addition to some distortion in the projection of some scenes with more complex color, other parts of the image quality are very high.

2. Characters

Compared with the details of the two figures on the black background, the projection image is somewhat white, and the brightness is deepened a lot; The appearance and details of the characters are perfectly displayed. Compared with the 4K original picture, there is no distortion or ambiguity.

Forgive me for trying my best to take photos. After all, it is projection and camera shooting that cause serious losses in the color contrast of the characters. In fact, the effect of watching directly on the screen through the human eye is much better.

Come to the contrast group of Zhang Goddess Tang Yan, we can see that the noise at the far focus of the lens has not been magnified, on the contrary, the overall color contrast has been strengthened, and even the dimples on the face are more cute.

Like the natural scenery above, the quality of the images with more complex and diverse colorities is more or less less textured than that of the original film, lacking some warm tone, and the picture definition and color proportion are not too big.

Because the white plastic screen used by the small editor is inferior to the more professional glass fiber screen in picture quality. Through the comparison of several groups of figure pictures, it is found that the Z4 aurora is better for the dark part imaging, and the scene with slightly higher brightness will appear slightly white and color biased, which is good for the figure shape, expression and details, It greatly restores the character effect of the original film.

Then I'll give you a cartoon character comparison, and the projection picture still maintains the style of cold color.

3. Foodies

The last group of comparison shows you some pictures of real objects. First, it is to attract your appetite, and then it is to evaluate the imaging effect of projection. The water drops on the tomato and lettuce in the picture are vividly displayed, and the rendering is very harmonious, without any unnatural effect.

The problem is still the brightness. The hot smoke effect is well presented. Although the overall brightness is lower, the color proportion still maintains a symmetrical effect.

The projection comparison of several groups of food pictures believes that everyone has an objective understanding of the imaging quality of the Z4 aurora. In addition to the lack of brightness, Xiaobian is very satisfied with the picture clarity, sense of hierarchy and color saturation. Again, there is some loss in the image quality of the camera, and the actual projection effect is much better.

We evaluated the details of the downward projection imaging through two groups of enlarged and contrasted pictures. Compared with the original picture, the medium distance enlarged photography did not show too much color difference, and the clarity and sharpness were relatively good; Both the eyebrows, glasses and other facial features of the characters are naturally and vividly portrayed. The magnifying effect at a close distance is a little blurry, some contours appear serious shadows, and the contrast is deformed. Xiao Bian thinks that it may also have something to do with the quality of the screen. When zooming in closely, you can vaguely see the small particles on the screen. If you replace it with glass fiber, the effect will be better.

The product concept of no screen TV is to enable users to experience the high-definition large screen film and television resources. So for the Z4 Aurora, whether it is playing a series or a 4K high-definition film, it is the best of its kind in terms of image quality, sound field effect and smooth performance of control. The drawback is that although the Z4 aurora enhances the brightness and quality of the projected picture in the daytime environment, there is still a certain gap compared with the 4K TV. Only at night or in the dark environment will there be a more shocking giant screen viewing effect. You can see the actual projection picture by making up the contrast picture of turning on and off the light.

other

After watching the projected image quality of the Z4 aurora on the Polar Meter TV, the editor will show you the effect of playing high-definition 4K video. The selected advertising videos of brand TVs at both ends show that Z4 Aurora shows the original picture quality of 4K resources very well from the captured pictures. At the beginning of the post, the editor also showed you a recorded MV video, mainly to let you experience the sound quality effect of the Aurora. The next video is to closely evaluate the ability of the Aurora to play video from the aspects of picture quality and continuity.

Z4 There are also many 4K, 3D and other videos and movies available in the resource pool of Aurora itself. If you have good quality screens at home and match them with 3D glasses, you won't have to queue up to see movies in the cinema in the future; It is also a happy thing to enjoy the giant screen movies brought by the Z4 aurora at home.

The heat dissipation performance of the polar meter Z4 aurora is also very good. The actual measured indoor temperature is about 23 degrees; After watching the movie for about 2 hours (the volume is the highest), the temperature near the cooling hole on the surface of the machine shell is about 30 degrees; The actual temperature of the cooling air hole is 42 degrees. It can be seen that the heat is released well at the cooling hole, and the performance of the machine itself is relatively satisfactory.

In addition to being able to control the Z4 Aurora through the matching remote control, the company also provides a powerful APP software with rich functions, such as "Gemi Assistant". Click on the mobile phone resources to project the pictures, music and videos on the mobile phone through the aurora. Jimi assistant also has remote control, same screen function, display and control the projected content on the mobile phone, voice assistant and other functions.

Appreciation of beautiful scenes

The Z4 Aurora, a non screen TV, has a very good cost performance, whether it is used for watching movies at home or for office presentations. Here, I also evaluated the overall use effect of this projection from the aspects of appearance, performance and actual application experience. I will take the final application scene to enjoy it closely with you.

summary

As for the evaluation post of the Jimi Z4 Aurora, the editor has brought so many things to you. There may be some things in the article that are not detailed or comprehensive. Please give more criticism and correction. In general, this product has killed many similar products in the market because of its beautiful appearance and outstanding projection effect; However, during the evaluation process, Xiaobian also found several shortcomings of the product, which are summarized as follows. I hope the manufacturer can consider the suggestions of Xiaobian.

1、 It is suggested to change the projection lens chamber cover to electric switch mode to make hoisting and use more convenient.

2、 The 3D glasses in the accessories are lack of clip type glasses for myopia users. It is recommended to replace one of them.

3、 GMUI When the system switches to the business version mode again, it often crashes. I hope it can be optimized and improved.

4. The projection picture of the polar Z4 still has a slight color deviation, which is not comparable to the LED TV. I hope the manufacturer can continue to improve the hardware performance.

At the end of the article, for a small benefit, the best thing is always to stay at the end. Wear 3D glasses and turn on the 2D to 3D function. What will happen next?