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ViewSonic X10-4K 4K LED DLP Projector Review

Review Contents
Ease of Use
Intended Use:
DIY Home Theater
ViewSonic X10-4K Projector ViewSonic X10-4K
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2400 Lumens
Full HD 3D
$1,499 Street Price


  • 4K UHD resolution with second-generation 0.47-inch TI DLP chip
  • LED light source with life of 30,000 hours
  • Attractive case with carrying handle for transport
  • Doubles as Bluetooth speaker system for mobile devices
  • Alexa and Google Assistant voice control
  • Full 3D compatible


  • High (blue) out-of-box color temperature
  • Mediocre contrast/HDR performance
  • Input lag is too high for serious gaming


The ViewSonic X10-4K offers good 4K picture quality at its price point that should suit less-critical viewers attracted to its portability and lifestyle features, but serious home theater enthusiasts or gamers will find conventional projectors that offer better image quality and placement flexibility.


The ViewSonic X10-4K is the first introduction of the company's X series projectors, to be joined by the X1000-4K UST projector later this year. At a street price of $1,499, it falls between ViewSonic's PX747-4K and LS700-4K and joins the burgeoning sub-$2,000 4K projector market. The X10-4K has a fixed short-throw lens with auto-focus and auto-keystone capabilities. Although no claims are made for its color gamut beyond Rec. 709, ViewSonic says it will support DCI-P3 color out to 83%, which was verified by our measurements. Some competitive products at this price (the new BenQ HT3550, for example) claim full DCI-P3 coverage along with at least modest zoom and lens shift capabilities, as well as offering better contrast. But then, the X10-4K does include some things you won't find in many projectors, such as built-in Harman Kardon Bluetooth speakers, smart home assistant capability, and wireless connectivity for streaming. These features, along with its solid-state LED light source and boxy cabinet complete with carry handle, target the X10-4K more as a lifestyle projector designed for portability and ease-of-use than these other models.


ViewSonic differentiates the X10-4K from many of its competitors with the projector's light source. Instead of a traditional lamp, the X10-4K has a RGBB LED engine with an output of 2,400 LED lumens and a life of 30,000 hours. LED lumens is a manufacturer's estimate of an equivalent ANSI lumen specification that accounts for the fact that LED light is perceived to be brighter than what industry-standard ANSI lumen measurements suggest. (You can read more about LED lumens here in ProjectorCentral's article on the subject, and at ViewSonic's website. The X10-4K's ANSI lumen specification is 1,000 lumens, though we measured less.

The X10-4K uses a second-generation 0.47-inch Texas Instruments DLP chip with XPR technology that pixel-shifts a 1080p image four ways to achieve the 4K picture. While many may gripe that this means the ViewSonic isn't a true 4K projector, the difference is indistinguishable. The new second-generation chip limits the dark band around the projected image that was very evident with the first-generation chip. There still is a smaller dark band visible, but if your screen has any black masking around the screen material (like my Stewart does) the distraction it causes is negligible.


For a straight-on image, the X10-4K works best on a mid-sized shelf that places the lens a little above the bottom of the screen (or below the top if you choose to ceiling-mount it). There is an adjustable, two-position stand at the front to angle the lens up (by 15 or 30 percent) if the projector is placed on a lower table below the screen. As mentioned, the keystone adjustment and focus both have auto settings (on by default) to set up the image once the projector is placed. They can do a decent job, but can be inconsistent. I turned them both to manual in the projector's menu and fine-tuned them myself. The projector lens has a throw ratio of 0.8 and a throw distance range of 1.6 to 11.5 feet. It required just about 70 inches from my 100-inch screen for a full image. You can check the ProjectorCentral ViewSonic X10-4K throw calculator to establish the distance for your preferred image size.

There are some nice modern amenities that come with the X10-4K. There's an adjustable Eye Protection motion sensor (turned off by default in the latest firmware) that shuts the light off if anything moves within 50 or 100 cm (approximately 20 to 40 inches) depending on the setting. It's useful if you have a little one whose attention gets drawn in by bright lights. The two Harman Kardon speakers (each on one side) can be connected to via Bluetooth to use the X10 as a sound system for your mobile device. Pairing is quick and easy, and while in Bluetooth mode the projector light shuts off. The frequency response for the on-board sound system focuses on the mids for the benefit of dialogue; bass response is a bit light, as would be expected for smaller speakers without a dedicated enclosure. But they're able to play at a good volume without breaking up, so they're perfectly fine for a backyard movie night.

There is an included Wi-Fi dongle to allow connection to your wireless network and access to the Aptoide app store to download some app options such as Plex, ABC News, and Netflix. The Netflix app available through the Aptoide store can only be displayed at 480p, though, and the search function is clunky. The projector also allows screen mirroring of your mobile device.

With the Wi-Fi connectivity and built-in speakers, the X10-4K is designed to be a mobile solution. To that end, there's a carrying handle on the back for easy transport. This causes the lens to face downward while carrying, which causes my anxiety to rise. But, in actuality, there's little chance of damage befalling the glass in front of the lens. The handle itself is secure and folds nicely out of the way. There's a stylish leather magnetic cover that covers the back connections when the projector is not in use. It's reminiscent of an Apple iPad cover and gives the projector a modern look. Overall, the build quality and design of the chassis is sturdy and more fashionable than your typical black or white box.


For those with a smart home setup, the X10-4K can be controlled by either Amazon Alexa or Google Assistant. Setup involves creating an account with the ViewSonic Remote app and linking it to your Alexa or Google Assistant account. Once done, you can control volume, input selection, power, and auto-focus with your voice. It works flawlessly. Or, at least as flawlessly as Alexa or Google Assistant do.

The remote has a dim backlight when a button is pressed. It's bright enough to see in the dark without being blinding. There's a large toggle wheel in the middle of the remote that you can spin, or press any of the cardinal directions to navigate menus. There are different sets of menus; Basic and Advanced settings on the Home screen, and image setting and advanced popups for each input. Some things, like switching light source power, can only be changed by leaving the selected input and going back to the Home screen.

ViewSonic is currently running a promo that lasts until September 30, where purchasers of an X10-4K can get a free Roku Streaming Stick+. The Roku interface is the best currently on the market. It's fast, intuitive to use, and there are a slew of apps available that run at 1080p or 4K. The ViewSonic has HDCP 2.2 on both of its HDMI inputs, and it has two USB ports (one 2.0, one 3.0) to power the Roku stick. The HDMI ports do not have ARC, so an optical cable will need to be run to your AVR if you want surround sound.

Below is a more complete list of features.

  • 3840 x 2160 (4K UHD) resolution with 0.47-inch DLP chip with XPR technology

  • 2nd-generation DLP chip with more narrow dark band around the image

  • RGBB LED light source with 30,000 hours max lifespan

  • 2,400 LED lumen rating, 1,000 ANSI lumen rating; measured at 761 ANSI lumens

  • Full Rec.709 and 83% DCI-P3 color gamut

  • HDR10 support

  • Screen sizes from 30 to 200 inches diagonal (1.6 to 11.5 foot throw range)

  • Short-throw 0.8 lens; less than 6 feet required for a 100-inch image

  • Auto keystone (+/- 40 degrees) and focus adjustments

  • Wi-Fi connectivity with included dongle

  • Android-based Smart TV interface

  • Amazon Alexa and Google Assistant voice control compatible

  • Integrated MicroSD media player

  • Harman Kardon speakers with Bluetooth capability

  • Full-3D compatible with DLP-Link shutter glasses

  • Safety Auto-Off eye protection

  • 3-Year limited warranty, 1-year on light source

Next Page
Performance, Conclusion
Review Contents: Introduction, Features Performance, Conclusion Connections, Measurements

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