Nowadays, projectors are not only used for commercial purposes, but home projectors have also entered more families. With the increasing demand of people for display effects, the resolution of display devices has also been increasing along with the development of technology. From 1920×1080 Full HD screens up to now, 3840×2160 4K ultra-high-definition screens, the picture effect can be described as soaring. However, the projector with the highest resolution is 1080P. The price of tens of thousands of yuan for 4K projectors is prohibitive for ordinary consumers. However, this year's situation has changed. First, BenQ released the Star Series 4K projector, bringing the price of the 4K projection to less than 10,000 yuan. As a veteran manufacturer of video equipment, ViewSonic is naturally not far behind, in the early 2018 launched a new 4K projector - PX727-4K, more cost-effective. Then take everyone into this new projector evaluation:
1, appearance, accessories
3, OSD menu 
1, appearance, accessories
The design of the packaging uses a black glossy design
The inside of the box is a machine fixed with collision-resistant foam and other accessories
Accessories include remote control, power cord, warranty card, manual and remote control battery
4K logo on the fuselage attracts attention
The body design is small and exquisite, with a white scrub process, the golden mirror circle at the lens is a bit similar to the HOME key of IPHONE Typhoon Gold.
Osd button and power button, it is worth mentioning that the infrared sensor is embedded in the power button
Lens focusing ring
Radiator close-up
Rear interface close-up
Rich interface design, the interface includes VGA1, HDMI2.01, HDMI1.41 audio interface and USBtypeA interface. These officials have data, so I will not go into details here. However, I want to complete the 4K 60HZ output. Must use HDMI2.0 interface. HDMI1.4 can only achieve 30HZ refresh rate.
The monitor uses a backlight design to facilitate operation in a dark environment
2, performance parameters Standard mode
Theater mode (default)
Highlight mode
Custom 1
Custom 2
The PX727-4K has 5 modes for selection, including standard mode and two custom modes. The preset movie mode is for rec.709 color gamut adjustment. Basically meet the needs of most use scenarios, the perception is also the best.
4, projection effect The projection ratio of this projector is 1.47-1.76. The 3.25 meters can shoot a 100-inch screen. In addition, this projector supports HDR technology and can display HDR effects and enhance details of highlights and shadows when displaying HDR-supported images. Get a better display.
The picture contrast is very high, and the details of the dark details are also very rich
With the colorful technology of ViewSonic, the color of the screen is rich, and it looks very layered.
The RGBRGB color wheel can enrich the red, green, and blue primary colors. At this point, many manufacturers are using this technology as well.
5, heat, noise Normal mode noise test
Energy-saving mode noise test
Heat dissipation and noise are also important factors to consider before purchasing a projector. After all, noise in the indoor environment has a great influence on the viewing experience. In the test environment close to the heat vent. The standard mode floats at 45-50. The energy-saving mode floats around 40.
About a meter away from the projection measurement, the data is 29db. The noise performance is quite unexpected. Before the 1080P home projector was measured, the noise in the same test environment was about 60db. In actual experience, the noise of this projector is very good. Even better than many 1080P projectors. In terms of heat dissipation, there is a warm feeling at the outlet after using for more than one hour, but within the normal range.
6, using the experience The appearance of the PX727 is small and exquisite, the white design can be well integrated into the home, the brightness of 2200 lumens can fully meet the needs of home, HDR and dual RGB color wheel ensure the color performance does not lose the same price 1080P projector. Good heat dissipation and noise performance. The most important thing is that it has a resolution of 3840×2160. It is the lowest price 4K projector on the market. The price is very high.
PS: 4K projection is as long as 7999, 1080P where is the way out? Lower prices or delisting
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