Since June last year, Jimi Technology has successively launched three projections, namely, Jimi Air, Jimi Xiaomi and Z4X. Both the portable business Air and the small and cute Xiaomi are wildly sought after by fashionable men and women, and the demand exceeds the supply. And the Z4X, which focuses on home entertainment, has pushed the concept of Kimi TV without screen to the forefront of fashion home furnishing with its extreme audio and video effects, and has become the defending king of the new Kimi TV. I thought that with these three new machines, the Jimi Science and Technology Association, which accounts for half of the domestic micro investment industry, would "build walls and expand grain reserves", and take advantage of the current favorable situation to produce more and make a lot of money. The surprising result is that only four months after the release of Z4X, Jimi Technology launched the Z4 Aurora again, which not only refreshed the upper limit of brightness, but also took the lead in including the left-right trapezoid correction function, which is only available for high-end computers of 10000 yuan. It is truly amazing. The author was lucky to get the opportunity to experience the Z4 aurora at the first time. What is the strength of another masterpiece of this technology after the Z4X, and the writer knows.

From the appearance, there is almost no difference between the polar Z4 aurora and the Z4X except for a slight change in color. So let's directly look at the main parameters of the polar Z4 aurora:

We can see from the parameters that the brightness of the polar meter Z4 aurora has been upgraded from 580ANSI lumens of the Z4X to 600ANSI lumens, and the trapezoid correction parameters have also added about ± 30 degrees. The other parameters are basically the same as those of Z4X except for the improvement of brightness and the change of left and right trapezoidal correction function. Is it said that the Z4 aurora is only an upgraded version of Z4X? If it is an upgraded version, how many optimizations and improvements have been made? The data is not satisfactory after all. Let's begin to introduce it in more detail.

Product Unpacking

Compared with the pure white box of Z4X, Jimi Z4 Aurora uses cool black packaging, which makes the circle color bars around the product name of Jimi look more beautiful. In addition, the heavy feeling of holding it in the hand, a noble style completely different from the fresh Z4X comes into being.

Open the package, as expected, the magnificent style of the cliff. Product host, 3D glasses box, remote control power supply and other accessories are arranged in "pin" shaped zones. Open them separately and stack them neatly in each area. In addition to the gorgeous Z4 Evoque host, the all metal alloy remote control of the Z4 Evoque nearly blinded the author. Compared with the plastic ultra-thin remote control of the Z4X before, the Bigger flipped many times. In addition, the gilded VIP words on the small patch pocket on the opening page of the main box are also good accessories to the overall style, and also slightly inflate the user's vanity. Inside the VIP bag is a mango VIP film and television membership card worth 720 yuan for 24 months. Infinite HI cool blockbusters rely on it.

All accessories of the Z4 Evoque include the product host, all metal remote control (with charging wire), 2 pairs of shutter 3D glasses, triangle bracket adapter, power cord and adapter, and mango VIP card. It can be seen that in addition to the main accessories, 3D glasses and adapter plates have changed from the accessories attached with the product to the standard configuration in the Z4 Aurora. Especially for the configuration of two pairs of shutter 3D glasses, one pair is for hooliganism, and two pairs are for love. It's really gratifying that Aurora is so powerful.

Appearance and Details

The appearance design of the Z4 Aurora still follows the black glue style of the Z4X. Compared with the strong black and white contrast of the Z4X, the Aurora appears to be more tactful, like the south wind, with a little warmth inside. In addition, the 196 x 196 x 50mm fuselage does not take up much space, so it can be placed horizontally and lifted into various household styles. In addition, despite the artistic conception, the Jimi Z4 Aurora is better at anti dirt ability, and the surface material seems to have been optimized. Even if there are dirt stains, it is easier to handle than the Z4X.

In addition to the change of the appearance and color of the body, the all metal remote control specially made for the Z4 aurora is also one of the highlights of the product. Compared with the plastic remote control of the previous Z4X, the remote control made of aluminum magnesium alloy with the Jimi Z4 Evoque is really a shot in the arm. It is tall and powerful with the front ring indicator light and black paint laser button. In terms of functions, voice support, flying mouse function and gravity sensing function are added, which makes a qualitative leap in input, remote control and even game experience. At the same time, the power supply mode of remote control is changed from button battery to rechargeable lithium battery, which reduces the trouble of battery replacement.

Sliding boot is a major feature of the Jimi series. You can easily slide to enjoy the 300 inch giant screen audio and video. At the same time, both lens protection and dust prevention are considered, so you can do more at one stroke. The Z4 aurora obviously copied the Z4X on the lens cover, inherited the advantages and left behind the damping problem. It still feels uncomfortable when sliding the switch.

▲ Shutdown effect picture

Jimi Z4 aurora uses a high transmittance coated lens and the German OSRAM LED light source, which is said to be radiation free and eye friendly, with a new S8 optical engine and a dual optical path design, making the product's optical machine brightness nearly 30% higher than that of ordinary optical machines on the market. The aurora brightness value of Z4 is 600ANSI lumens (about 2000 ISO lumens), which is 20 ANSI lumens higher than that of Z4X. Although the increase is not much, horizontally speaking, among the micro investment products with a price of about 3000, the only one that can truly achieve 600ANSI lumens is probably Jim.

The polar meter Z4 aurora supports up to 1280 x 800 physical high-definition resolution, built-in MSIar quad core 1.5GHz 4K intelligent TV processing chip, and supports H.265 hard decoding, so there is no need to worry about your full hard disk drive's 4K ultra-high definition movies can't be played. 3D movies are also popular with 4K movies. The Z4 aurora not only supports the playback of 3D movies, but also supports the 2D to 3D function. Although the effect is certainly not as good as 3D movies, it is a pleasure for video lovers to experience 2D movies in a different way.

As a home audio and video entertainment product, the Z4 Evoque is outstanding in terms of sound effect as well as image quality. The English letter of Harman Carton on the front of the fuselage is the best proof. As the top audio brand in the United States, Harman Carton is famous for producing household and car audio. Mercedes Benz, BMW 7 Series, Land Rover Range Rover and other luxury cars all use Harman Carton audio systems. Apple, Toshiba and other high-end notebooks also have Harman Carton. Jimi Z4 series are equipped with Harman Carton dual crystal sound speakers. The clear and pure sound quality is very pleasing to the ear, and it can also bring better viewing effect in its own exclusive cinema.

With Harman Carton's crystal speakers, the Jimi Z4 series uses ultra-low distortion digital power amplifiers from American TI company, bringing excellent sound quality analysis ability and good low-frequency effect. With this advantage, Jimi Z4 Aurora follows the WIFI audio mode of Z4X. It is very comfortable to lie on the sofa and enjoy music without turning on the light machine and performing simple gesture operations above the "black film". However, it is easier to pull out the emotion immersed in the music with a stiff computer voice announcing the song name. If you can suggest to double click the center button to broadcast the song name, it is unnecessary to report every song.

The polar Z4 aurora on the rear side of the fuselage is completely the same as the Z4X. On the left side is a diagonal cooling hole, and on the right side are LAN interface, USB3.0 interface, USB2.0 interface, HDMI interface * 2, DC IN (power supply) interface, AV interface, headphone interface and RESET hole. 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 polar Z4.

Good products are good at using space and ingenious design. In addition to the cooling air inlet and anti-skid silicone pad, the bottom of the polar meter Z4 aurora is also designed with a dark grid. Screw off the three fixing screws of the back cover to see an expansion bin for 2.5 inch SATA solid state disk. First, it is convenient for users to place their hard disks here for local playback of movies and videos, The second is to download movies to the hard disk for viewing with the Thunderbolt remote download function built into the UI of the Jimi system. This function enables users to use the computer terminal to add a download task for the home's aurora borealis, so that they can directly watch the pre downloaded movies at home, without being affected by the home's Internet speed, to avoid online buffering affecting the viewing experience, which is a great love for movie fans.

The adapter plate is regarded as the standard configuration of the polar meter Z4 aurora and placed at the bottom of the packaging box. It is also very convenient to use and install. Unscrew the three fixing screws at the bottom to align the adapter plate with the fixed point. The adapter plate can be used with a hanger or tripod. The office of Jimi provides special supports such as table top supports, hangers and universal bedsteads, or camera tripods. For home use, I recommend the hanger. It not only has better viewing effect, but also is convenient for machine storage. It can easily turn the polar meter Z4 aurora into an exquisite decoration in the living room.

▲ Installation effect of polar meter Z4 aurora tripod

System and Function

On the customization of the system UI, the Z4 Aurora and Z4X are the GMUI system independently developed by the Jimi based on Android 4.3. The 3D multi-dimensional layout, simple pages and convenient operation are available on the MStar quad core (A9) 1.5GHz 4K intelligent TV processor, With Mali-450MP4 graphics processor, 2G running memory and 16G flash memory, the system runs smoothly. High bit rate video playback and large game playing are also no problem.

Although the Z4 aurora is the same as the Z4X system UI, compared with the Z4X UI, the Z4 aurora is obviously optimized and improved a lot. The most obvious is the deepening and development of the voice recognition, flying mouse, gravity sensing and other functions of the new generation remote control of the Z4 aurora. Users can easily find movie music resources, query stock weather, shut down the system, set and other operations through voice, which is more convenient to use. Secondly, the business model that disappeared on the Z4X has also been returned, making the Z4 Aurora not only for home use but also for business occasions. In addition, the arrangement of using the tutorial in the Z4 aurora is also very rich, including the initial remote control configuration, the use of Baidu music functions, and even the introduction of the same screen functions with video demonstrations, which is very user-friendly.

In terms of video and audio resources, it is still a strong combination of Mango TV and Baidu Music. Under the various bans of radio and television on TV apps today, the Genami Z4 Aurora, which has genuine resources, makes people feel very reliable. In addition, with the 2-year VIP membership card of Mango TV, it is also the first to watch various film and television resources, whether it is 3D movies Both 4K HD and Dolby movies have special areas for users to watch, which are very rich in resources.

There is no big change in games and applications, but there are more varieties of games. At the same time, various game halls have been launched for users to download and use, greatly enriching the game experience. In terms of applications, the system is not equipped with many, but it supports the installation of USB flash drives and phone assistants, which is also very convenient.

The settings and technical support in GMUI are also very rich. There are many options for users to choose from, whether network connection or projection settings. Users can use these settings to create a Z4 aurora that is more suitable for their use scenes and viewing habits. In particular, the addition of the left and right trapezoid correction function in the projection setting is even more impressive. This high-end function, which is only equipped for the 10000 yuan level projection, makes the projection of Jimi more free and free, and can balance a good viewing picture from a harsh angle, which is really powerful. The author has made a simple effect display as shown in the figure below.

▲ The screen before using the trapezoid correction function.

▲ Use the trapezoid correction function to adjust.

▲ Use the trapezoid correction function to adjust the picture effect.

From the simple display above, it can be seen that after adding the left-right ± 30 ° trapezoidal correction function, the polar meter Z4 aurora supports vertical ± 35 ° and horizontal ± 30 ° picture calibration, which can still present the user with the best picture angle even if there is no suitable placement position. The addition of this function of the Z4 aurora is undoubtedly the biggest addition of this new machine, which further reflects the product concept of "born for freedom".

In addition to WIFI settings, wireless communication technologies such as Miracast, AirPlay and DLNA can also be seen in the network settings of the polar meter Z4 aurora, which also shows that the polar meter Z4 aurora supports mainstream wireless connection protocols in addition to the input of two HDMI HD interfaces. The computer and mobile phone can be easily connected to the projection through the Gemi assistant launched by Gemi. In particular, the Jimi assistant on the mobile phone not only supports the simultaneous play of mobile resources and remote installation of applications, but also has the function of remote control. Mobile phones are in hand, and remote controls are saved. In today's intelligent era, Jimi is super synchronized.

Jimi Z4 aurora follows the electric focusing mode of Z4X, which has greatly improved the focusing speed and accuracy compared with the manual focusing of previous products. In terms of image quality, the Z4 aurora adopts the DLP optical projection technology of Texas Instruments, 16 image quality enhancement technologies and 11 colorful enhancement technologies. With accurate focusing, the Z4 aurora has a good performance in both the standard video playback and the business text display. The author has taken several samples of the picture quality of the aurora of Jimi Z4, as shown below:

▲ HD pictures

▲ Real picture of high-definition film

▲ Picture of 4K test film

▲ Picture of text effect

▲ Original picture, daytime and darkroom contrast picture

From the sample above, we can see that the color and brightness projection of the image quality of the Z4 aurora are very uniform, and the color contrast, clarity and fineness of the image quality are also very good. Especially for the broadcast of high-definition movies, the gap between the definition and the TV is really not big, and the telepresence brought by the 100 inch screen is better than that of the living room TV. In addition, the Z4 aurora in the last picture also shows a good degree of restoration of the image, and its performance in normal daytime light has also improved. Although it still cannot end the slot point of "playing the concept of non screen TV, but can not be used in the daytime like TV", it is a micro projection product after all, and it has done its best for users to use in more scenes.

In addition to high-definition blockbusters and 4K, the Z4 aurora also supports Blu ray 3D original disc play, and Mango TV also has a 3D section for users to choose from. However, this is not the end. The Z4 aurora has added the function of 2D to 3D, and your favorite 2D movies can easily be converted into 3D stereoscopic views. How wonderful.

▲ 3D effect display

▲ 2D to 3D effect display

Obviously, the author can't show the true 3D effect when shooting like this, but there is still a side effect in the function of 2D to 3D. But in the actual appearance, the 100 inch screen of the Z4 aurora with the original 3D active shutter glasses is really great, and the 2D to 3D function has added new ideas. The 3D version of Charlotte's Worries that can't be seen in the cinema can be seen at home, and the effect is good, isn't it beautiful?

With a feast in the aspect of video and audio, the game is also free from stinginess. The addition of various game halls saves users from the trouble of offline installation, while the remote control with gravity sensor also provides users with a better game experience. Of course, playing games is naturally easier with the game controller. The Z4 aurora supports Bluetooth and 2.4G wireless port peripheral access, while the stimulation of the 100 inch screen is enough to make people excited.

『 Heat dissipation test 』

After being exposed to the air, Xiaomi and Z4X of Jimi, the author is very relieved about its cooling function. However, for the completeness of the report, the fuselage temperature of the polar meter Z4 aurora was simply tested. The test is the temperature after the normal play of a high-definition movie. From the above figure, we can see that the body surface temperature is about 28 ℃, the highest temperature in the cooling hole area is about 38.2 ℃, and the temperature measured from the cooling hole to the inside is only 40.4 ℃. This temperature can be said to be very well controlled for micro projection equipment.

Concluding remarks

As the end of the year of 2015, the Z4 aurora is not too different from the Z4X in appearance and hardware configuration, or it can be called the upgraded version of Z4X. But even as an upgraded version of the flagship aircraft, the Z4 aurora can still bring us many surprises from a strategic perspective. The left and right trapezoid correction technology, the introduction of intelligent multi remote control, and the novel experience of 2D to 3D are all highlights of this new machine, which is unique to the high-end machine of 10000 yuan. In addition, the return of business model and the new high brightness of 600ANSI lumens also make the Z4 Aurora more flexible than the Z4X in application scenarios. In terms of price, Jimi products have always been excellent in quality and price. The author believes that such an intelligent non screen TV product integrating audio, business and entertainment is far more powerful than the current smart TV, which is easily priced at 5000 or 6000 yuan. At least there will be a private cinema emperor for you forever.