When it comes to projectors, in my impression, they are always box sized BenQ brand projectors for classroom or company training. The various noises during projection and the various color changes of the projection screen have made the bug not very fond of the projector. I remember that I occasionally saw the smart projector of Jimi brand in Jingdong Mall last year Z3 , it's amazing that the projector can play like this. It is no longer a fool, it can also be made very beautifully. It is not limited to PC End link, with Android based system, insufficient three thousand For some time, people had a strong desire to buy. Some time ago, Bige Play launched a new product of Jimi Z4 Air Of zero For Meta experience, Bug signed up at the first time and was lucky to get the opportunity to experience. For polar meters Z4 Air , official publicity “ 100 inch giant screen Like Shadows ” , which uses 23.5mm Ultra thin body, known as the thinnest high-definition projection product on the market. What kind of user experience does it bring?

Unpacking

Polar meter Z4 Air The package can be described as amazing. The box with all black design is very thin and adopts a three-stage opening design. Product on the front LOGO , Jimi gave its projector a new name "Jimi Screen less Super TV", which can be seen the difference from the traditional projector. This experience also randomly presented a key shutter style 3D Glasses and a storage bag, let the bug 3D The effect has been greatly expected.  

Some product information can be seen on the side of the packing box. It can be seen that in order to solve the problem of film source, Jimi has chosen to cooperate with Mango Internet TV, which has built-in Mango TV , Jimi also cooperated with Baidu Music.

The accompanying leather storage bag is very comfortable and exquisite. Because of the polar meter Z4 Air The aluminum body is used. It is absolutely necessary to have a proper storage protective bag for the protection of the body when carrying.

Open the three-stage package and you will see two small boxes inside. In a box Z4 Air The other is equipped with accessories. The instructions are designed with black hard paper, which is simple and easy to understand, and easy to operate. There is also a value behind the explanation seven hundred and twenty Mango in Yuan Dynasty TV Two year membership redemption card. It can be said that Jimi is very generous.  

Included accessories include remote control, power adapter, HDMI HD data cable, and a button battery for remote control. The remote control borrows from the design of Xiaomi remote control. Its shape and function key layout are similar to Xiaomi remote control. There is a row of keys on the function keys, which are the screenshot key, shortcut key, and image mode key. The output of the charging adapter is 19.5V 2.3A , also stands for Z4 Air It can't be carried by ordinary mobile phone or tablet charger.

Appearance process design

For a projector that focuses on business mobile office and entertainment, reasonable portability should be a prerequisite. It is not as convenient to make the projector thin and small as it is to make mobile phones. High quality projectors need enough internal space to place bulbs, fans, etc. Polar meter Z4 Air With the ultimate process design, the thickness of the fuselage is the thinnest 23.5mm (actually measured by the author 23.9mm Does not exclude the error of measuring tools), and the body size is only seven The inch flat plate is slightly larger. Only 650g The projector can also be carried like a tablet phone. More importantly, it is a mobile TV.

Polar meter Z4 Air The appearance adopts Macbook Pro The same process, Australian aluminum one-piece molding all metal fuselage design three Wheel surface polishing, manual fine wire drawing, high-strength sand blasting eight Hours of anodizing, etc., are excellent in workmanship and feel. The hand feel is soft and exquisite, and the appearance is very exquisite and tall. Fuselage frontal GIMI logo , highlight reflective design, very eye-catching.

Polar meter Z4 Air The unique and reasonable sliding cover switch design is adopted to combine the dust cover and power switch into one. After up to twenty The measured sliding damping is excellent after 10000 sliding tests. The sliding cover is also made of metal, with a special surface texture, which is durable and anti slip. The corners adopt CNC The edge cutting and chamfering process has a good sense of metal light.

For a high heat projection device, heat dissipation is very important Z4 Air Graphite is used as the heat dissipation material, and the heat dissipation system is also very reasonable. The side is designed with a metal grille air inlet, and the air outlet is designed in front of the fuselage. The reasonable cooling system and excellent cooling materials ensure the normal operation of the equipment. In the author's long playing test, the maximum stability of the machine table is only thirty-five point eight ℃, it can be said that the heat dissipation performance is excellent.

There is also a focusing knob on the side of the side air inlet. When the picture is blurred or the projection distance changes, just move the focusing wheel to adjust the picture definition. The operation is very convenient.

Maybe it's a sacrifice for portability, Z4 Air The extension interface of is relatively not very rich. From left to right, power interface, USB2.0 ， USB3.0 ， HDMI HD interface, 3.5mm The headphone jack and mobile power are quickly turned off. by the way, Z4 Air It is not only an intelligent projector, but also one with a capacity of 13600mAh Mobile power supply of. When you go out with this product, you can save the mobile power supply. After all, the mobile power supply with the same capacity also has considerable weight. 13600mAh The built-in power supply of can also guarantee the projector two point five Hours of continuous playback, that is, even if there is no external power supply outdoors, it is still no problem to watch a movie of average length.

There is also a group of loudspeaker openings on the right at the back of the fuselage, which is extremely meters Z4Air Texas dual channel, bipolar input sound quality operational amplifier OPA1612 , from 1HZ reach 80KHZ Always keep 120db Constant, no distortion even if the volume is continuously raised. The sound of the loudspeaker is still very loud indoors, and it is a little weak outdoors. But even indoors, if you want excellent sound effects, it's still a bit difficult. It's OK Z4Air Support Bluetooth external audio. The author connected the Bluetooth audio of Xiaomi TV, and the effect came out at once.

Display effect

Polar meter Z4Air Adopted LED Projection light source, do not worry too much about the life of the bulb. It uses a highly transparent coated lens with a brightness of 250ANSI Lumens, maximum projection can reach three hundred Inch. The standard resolution is one thousand two hundred and eighty × seven hundred and twenty , while being compatible 1080P perhaps 2K Display of resources. The screen contrast is five thousand ： one ， 3D Active shutter imaging technology is used for imaging. be relative to Z4X Of 5800ANSI Lumen, indeed, is a little low. It also somewhat affects the daytime imaging effect. Even if the curtains are closed in the daytime, the experience effect will be greatly reduced. The display effect at night is more comfortable. Daytime display effect (camera live shot clipping):

Effect of turning off lights at night:

It can be seen that due to the small lumens, the daytime effect is still unsatisfactory. With a number of technologies for image quality enhancement, the night effect is very excellent. If you want to experience in the daytime, you'd better change the curtains to dark ones. The effect may be better.

In terms of visual angle, polar meters Z4Air The projection effect is very excellent. Even at a very small angle, you can see the picture clearly without losing color. As for the display effect, the projected image is still somewhat cold and green. Same picture and Xiaomi TV two This is especially true.

The edge of the projection screen will still be slightly blurred, and obsessive-compulsive disorder will still affect the experience effect. This problem still needs further optimization in the projection technology.

Although the projection supports various light colored walls, it is recommended to buy a projection screen for a more comfortable picture experience. The picture definition and quality will be much better.

System experience

The interface of Jimi non screen super TV system is very similar to that of Xiaomi TV system, which is based on the in-depth development of Android system. The system desktop home page consists of film and television, music, applications and other sections. Film and Television Pass and Mango TV Cooperate to enrich resources, while Music cooperates with Baidu Music. The whole system interface is very simple and the operation is very smooth. The mobile phone terminal is equipped with a polar assistant APP The projector can be remotely controlled directly.

In order to enrich resources, the author is more willing to load more other audio and video platforms APP It is also very simple to install third-party applications. You only need to download the APP , put U Disk, and then insert the USB Interface.

The Jimi Screenless Super TV system can also access the pictures and audio in the Xiaomi routing hard disk or the intelligent cloud disk in the same LAN, and realize the expansion of the film source.

In the actual experience of the past few days, the system still experienced several desktop crashes, such as Mango Internet TV, Fengyun live broadcast, etc APP The phenomenon of flashback needs further optimization.

summary

Polar meter Z4Air By virtue of the ultimate process design, the non screen super TV adopts the Australian magnesium alloy integrated body design, which achieves the goal of 23.5mm The thickness of the fuselage. With comfortable hand feel, it also brings portability like tablet computer. A number of image quality enhancement technologies make the picture very clear in dark light. However, since only 250 ANSI Lumen's lens, in the daytime performance is somewhat unsatisfactory. television system UI The design is simple, the operation is simple, and the operation is smooth. Passing and Mango TV Baidu Music's cooperation has also shown some achievements in both audio and video resources and music resources. In general, as a model two thousand four hundred and ninety-nine For the projector Z4Air It can really bring you enough surprises.