Optoma UHD50X vs BenQ TK700STI

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Optoma and BenQ are making 4K projectors more affordable for the average buyer. You can watch cinematic quality movies and shows at home without emptying your wallet. Their projectors are also user-friendly. You don’t have to spend hours trying to set the projector up. So, which model is right for you?

Comparing the Optoma UHD50X vs the BenQ TK700STI highlights their similarities and differences. The UHD50X produces a brighter more dynamic picture, but the TK700STI is easier to set up and operate (>>> Check on Amazon). It may also be a better choice for gamers.

Still not sure which 4K projector to take home? Here’s a closer look at what you get with each model.

Optoma UHD50X vs BenQ TK700STI Specifications:

Optoma UHD50XBenQ TK700STI
Contrast Ratio500,000:110,000:1
Brightness (Lumens)3,400 ANSI3,000 ANSI
Input lag25ms17ms
Throw Distance4.0' - 26.6'2.4' - 19.6'
Screen size34" - 303"30" - 300"
Internal Speakers5.0 Watts Mono5.0 Watts Mono

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Image Quality

With 4K resolution, image quality isn’t an issue with either projector. There is a difference when it comes to brightness and the contrast ratio. The 3,000 lumens light source on the TK700STI is bright enough for most daytime viewing, but the UHD50X is better at canceling ambient light. It has a 3,400 lumens rating, so you always get a bright picture.

Images are also more dynamic with the Optoma model. It boasts a 500,000:1 contrast ratio, compared to the 10,000:1 with the BenQ projector. Colors are brighter, especially whites. Blacks are deep and rich without any greying or fading.

Best Image Quality: Optoma UHD50X

Flexible Installation

Both projectors are lightweight and compact. You get a flexible installation no matter which one you bring home. Aligning onscreen images is easy. Along with digital keystone correction, you can fine-tune the images to your viewing preferences.

These are standard throw projectors you need around 6 feet or so if you want 100” images with the TK700STI. The UHD50X needs around 9 feet, making the BenQ projector a little more flexible in smaller spaces.

Most Flexible Installation: BenQ TK700STI

Gaming Quality

It’s not often gamers can choose between two affordable 4K projectors, both with a low input lag. The projectors also have a fast refresh rate. You don’t have to wait for frames to load on action-packed or graphic-rich games.

The UHD50X has an input lag of 25ms in 4K resolution. Dropping down to full-HD, you get a 16ms input lag. It’s the same with the TK700STI, but it also comes with multiple gaming modes. You can optimize onscreen images to match the game type.

Best Gaming Quality: BenQ TK700STI


The biggest difference between the two projectors is connectivity. You have plenty of ports on the UHD50X, but the TK700STI boasts onboard Wi-Fi. You can connect your devices wirelessly, eliminating the need for cables.

The TK700STI also comes with mirroring capabilities, along with an easy-to-use Android TV interface. The interface is preloaded with the Google Play Store. All of your favorite streaming apps are at your fingertips. It also comes with Google Assistant for voice control.

Best Connectivity: BenQ TK700STI

Optoma UHD50X

Optoma UHD50X

The UHD50X is an affordable true 4K projector. It produces stunning images in almost any lighting. HDR10 and HLG support further optimize image clarity, along with UltraDetail technology. Dynamic Black, and a high contrast ratio, ensures colors are vibrant and accurate. You see colors the way they are meant to be seen.

Gamers looking for an input lag faster than 25ms will have to lose some image clarity. Dropping down to 1080p in gaming mode boosts latency speeds to 16ms. Some gamers may run into a problem with connectivity. The projector only supports wired connections, so you may run out of ports for multiple consoles.

Installing the compact projector is a breeze, though you do need around 9 feet for 100” images. It’s not designed for smaller spaces, but it does offer some flexibility thanks to the various image alignment settings. Digital keystone correction, along with vertical lens shift and manual zoom, allows you to fine-tune images on the screen. You don’t need to have the projector perfectly centered with the screen.


  • Dynamic Black technology
  • HDR10 and HLG support
  • 4K resolution
  • Low latency speeds
  • High lumens rating


  • The 4K projector does not come with wireless connectivity



You get true 4K resolution with the TK700STI. The DLP display, combined with the 10-bit color processing wheel, ensures colors are accurate across the Rec. 709 spectrum. The contrast ratio is a little low, but it’s not enough to affect accuracy. You get bright, true-to-life colors on all of your content.

Gamers will notice the projector lives up to its advertising. It is an affordable gaming projector. A 16ms input lag ensures commands from the controller aren’t delayed reaching the screen. The 240Hz refresh rate keeps frames playing smoothly. What sets the BenQ projector apart from other models are the dedicated gaming modes. You have a mode for sports, first-person shooter, and role-playing games. The only downside is the onboard 5W speaker. If you want to hear immersive audio on your games, you will need to connect external speakers.

Wireless connectivity allows you to stream content from almost any compatible device. You can also mirror content from your phone or tablet. The Android interface is connected to the Google Play Store. You don’t have to search for your favorite streaming apps. Google Assist ensures you can operate the projector even if you can’t find the included remote. Find a comparison versus the BenQ TK700.


  • 4K resolution
  • Corner Fit Correction technology
  • Low input lag
  • Multiple gaming modes
  • Flexible installation


  • The projector does not come with lens shift, making it a little harder to align onscreen images


Comparing the Optoma UHD50X vs the BenQ TK700STI a few differences immediately stand out. The UHD50X is the winner when it comes to image clarity. You get a brighter more immersive picture. The TK700STI is a gaming projector, and it boasts wireless connectivity. It also has a more flexible installation, especially in smaller areas (>>> Find on ProjectorScreen).

When you are choosing between the two models, it comes down to what you want and need from a home cinema projector.