ViewSonic PX748-4K Review

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Affordability and 4K resolution rarely go hand-in-hand, but ViewSonic delivers with the PX748-4K. The combination of innovative technology, 4K resolution, high lumens rating, and minimal input lag makes it a flexible home theater project. However, the projector also has a few downsides that include a long throw ratio, limiting where you can use it.

In this ViewSonic PX748-4K Review, we’ll look at what the projector does and doesn’t offer so you can decide if it is right for your entertainment needs (>>> Find on Amazon).

ViewSonic PX748-4K Review of Specifications:

ViewSonic PX748-4K
Contrast Ratio12,000:1
Brightness (Lumens)4,000 ANSI
Throw Distance3.2' - 24.7'
Screen size30" - 301"
Internal Speakers10.0 Watts Mono
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Image Quality

The PX748-4K keeps up with its higher-priced competitors. You get true 4K resolution, thanks to a combination of advanced XPR technology and a DLP display. Correcting image sharpness and color accuracy is a breeze with HDR and HGL support. Onscreen images appear the way they are intended.

Adding to its ability to produce accurate colors is its SuperColor function. The technology is exclusive to ViewSonic and helps ensure you get bright, vivid colors regardless of the amount of light in the room.


Anyone looking for a projector with wireless connectivity will be disappointed. While you can take advantage of the network connections, it only works seamlessly with LAN-based systems. When you want to use Alexia or Google Assist, be prepared for some issues.

However, when it comes to connecting wired devices, the projector boasts two HDMI ports. You can also take advantage of the dual USB ports. Its connectivity isn’t as robust as you get with some other 4K projectors, but you can connect more than one device at a time.


  • 4k resolution
  • Low latency speed
  • Onboard speaker
  • Lightweight and compact construction
  • Bright light source


  • The long throw distance can make installation difficult in smaller spaces
  • It has limited image adjustment features

Gaming Quality

Along with exceptional image quality the PX748-4K has an impressive refresh rate. At 240Hz, it’s comparable to home theater projects marketed for gamers. It’s also hard to complain about the 4.2ms latency speed. Even competitive gamers can keep up with the fast-paced action.

Gamers can even charge their devices while they are playing via the USB-C port. It’s a handy feature that helps ensure your device doesn’t power down in the middle of a game.

Ease of Installation and Set Up

ViewSonic PX748-4K

Weighing around three pounds and measuring 8.7 x 4.3 x 12.2 inches, it is a lightweight and compact projector. You will quickly realize it is a bonus when it’s time to install the projector. It has a long throw ratio, especially if you want 100-inch images on the screen. You will need at least nine feet of space between the projector and screen.

Even though the projector works best in larger spaces, it is lightweight enough to mount on the ceiling. The ceiling mount is an extra purchase, but it may be worth it when image size is a priority.

You will notice image correction functions are lacking some features you often find on models with a higher price point. It’s one of the reasons the projector has a long throw ratio. You get 2D keystone correction, along with 1.3x zoom. It’s enough to center onscreen images but not much more. We chose ViewSonic PX748 among the best projectors under the $1000 price tag.

One feature that makes setup a little easier is the powerful 4,000 lumens rating. The lamp is bright enough to counteract most ambient light, so installation isn’t limited to dark corners. The projector also comes with an onboard 10-watt speaker. It’s not going to replace your sound system, but the audio is comparable to what you get from most smart TVs.

Consumer Impressions

Overall, consumers have few complaints about the ViewSonic projector. Its bright images and low input lag are equal to many of the higher-priced 4K projectors on the market. Consumers are disappointed at the lack of onboard streaming. The long throw distance is another common complaint.


The PX748-4K is a good option for anyone looking for an affordable and flexible use 4K projector (>>> Check on Bhphotovideo). It does come with its downsides, primarily the throw ratio, but its image quality and price make it worth considering.


Is ViewSonic PX748-4K good for home cinema?

The PX&48-4K is a flexible projector ideal for home cinemas. Low latency speeds, astonishingly vivid images, and a bright light source allow the projector to work in most larger spaces.

What Is ViewSonic PX748-4K Throw Distance?

The projector’s throw distance ranges from 3.2’ to 24.7’ and it works with screen sizes from 30” up to 301”. To enjoy 100” images, you need around nine feet between the lens and screen.

How do I activate the lowest input lag of the PX748-4K?

Live sports and games play without motion blurring with the 240hz refresh rate and 4.2ms input lag. The resolution does drop to 1080p when you enable the low latency speed in the Advanced Settings menu. To return to 4K resolution, turn off the input lag in the menu.