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The right 4K ultra short throw (UST) projector depends less on a headline lumen figure than on your room, screen size, and willingness to add a compatible screen. For a bright room, the Epson EpiqVision Ultra LS800 has the clearest evidence-backed advantage; for stronger contrast and color in a darker room, consider the Hisense PX3-PRO. The Hisense L9Q is a premium large-image option with built-in Google TV and substantial sound, while the LG CineBeam HU915QE and Hisense PX4 Pro round out this shortlist for picture quality and high-refresh gaming, respectively.
This is a buying guide based on published reviews and manufacturer specifications, not a standardized head-to-head test. The five models are selected for distinct use cases; they are not a universal ranking, and prices and availability vary by region and retailer.
How to choose a 4K UST projector
A UST projector sits close to the wall and casts its image upward, which can make a very large picture possible without mounting a projector across the room. It does not remove the need to plan the installation: the projector’s supported image size, its placement geometry, and the screen surface all affect the result. Before buying, check the manufacturer’s setup guidance for your intended diagonal and confirm that any screen you plan to use is compatible.
- Room light: A brighter projector is generally the safer direction where the room cannot be darkened. Brightness claims are not automatically comparable when manufacturers or reviewers use different measurement standards.
- Contrast and color: In a darker room, black levels and color performance may matter more than maximizing brightness.
- Screen and image size: Check the supported range and whether the model includes a screen. UST projection is especially sensitive to screen flatness and placement.
- Features: Built-in streaming, speakers, and gaming modes can reduce extra equipment, but they do not substitute for checking the installation and input requirements.
- Price and bundle: Treat prices reported in reviews as dated, regional references, not live quotes. Confirm whether a screen is included in the exact package being sold.
Five 4K UST projectors to consider
1. Epson EpiqVision Ultra LS800 — best-supported pick for a brighter room
The LS800 is the most defensible choice in this group when you cannot fully control ambient light. RTINGS says it is noticeably brighter than the Hisense PX3-PRO and better suited to rooms that are not light-controlled. That is a reviewer comparison, not a claim that it will look bright in every room or on every screen. RTINGS’ LS800 and PX3-PRO comparison
#1 Best Overall
- 【Ultra Short Throw 4K Laser Projector with ALPD Technology】Powered by ALPD laser technology and true 4K UHD resolution, this ultra short throw projector 4k delivers speckle-free 4K ultra-high definition with 110% Rec.709 wide color gamut, displaying 1.07 billion vivid colors. HDR10 and HLG high dynamic range support ensures superior color accuracy, brightness, and contrast for an immersive cinematic experience.
- 【150'' Giant Screen, 3D Function & MEMC for Smooth Motion】 With a 0.23:1 ultra short throw ratio, this short throw projector 4K casts a massive 150-inch screen from just 49cm (19 inches) away—perfect for small rooms and limited spaces. Enjoy Active 3D movies that bring every scene to life with enhanced depth and realism, making family movie nights and blockbuster hits truly immersive. Built-in MEMC motion compensation eliminates blur and judder, delivering crystal-clear and ultra-smooth visuals during fast-moving sports, action-packed films, or gaming.
- 【Official Netflix with Smart Google TV System】Enjoy unlimited content with this short throw projector featuring native Netflix and Google TV built-in. Instantly access over 700,000 movies and shows across 10,000+ apps. Enjoy personalized recommendations, multi-user profiles, and a dedicated kids mode. Use Google Assistant for hands-free voice search, app navigation, playback control, and smart home integration—all with simple voice commands.
- 【High Brightness 2100 ISO Lumens with Eye-Friendly Low Blue Light】Boasting 2100 ISO lumens of brightness and a 3000:1 contrast ratio, this 4K ultra short throw projector delivers bright, vibrant images with impressive clarity. It performs well in rooms with moderate ambient light, while a darker environment provides the optimal viewing experience. We recommend minimizing direct sunlight or pairing with an ALR screen. Equipped with advanced low blue light technology, wemax nova pro ust projector effectively reduces harmful light emissions to minimize eye strain, ensuring comfortable, long-duration viewing. Ideal for family entertainment without compromising picture quality or eye protection.
- 【30W Speakers with Premium DTS-HD Dolby Audio and Versatile Connectivity】Built-in dual 15W high-quality speakers support Dolby Audio and DTS-HD, delivering immersive, theater-like surround sound. DTS technology creates a spatial audio experience that makes every sound feel lifelike and three-dimensional. With multiple connectivity options including HDMI 2.1, USB,AUDIO,OPTICAL,LAN,WIFI,and BLUETOOTH, you can easily connect game consoles, soundbars, USB drives, and streaming devices, transforming your room into a full entertainment hub with powerful, cinema-quality audio right out of the box.
Epson specifies a three-chip 3LCD laser system and rates the LS800 at 4,000 lumens of color brightness under IDMS and 4,000 lumens of white brightness under ISO. Those are separate manufacturer specifications with named measurement bases; do not compare either number directly with another model’s figure unless the measurement standard matches. TechRadar’s 2026 roundup describes it as a 4K projector supporting an image up to 150 inches. Epson LS800 product specifications TechRadar’s 2026 UST projector roundup
Best fit: A living room or multipurpose room where some ambient light remains and the priority is a more visible image. Choose another model if your primary goal is the better contrast RTINGS attributes to the PX3-PRO.
Rank #2
- 10 in. Ultra Short Throw Distance
- Integrated Dolby Audio
- Triple Laser RGB Technology
2. Hisense PX3-PRO — stronger candidate for a darker room
RTINGS says the PX3-PRO has better contrast and color than the LS800, making it a stronger candidate where you can dim the room and value image depth. Hisense advertises 110% BT.2020 color-gamut coverage and 3000:1 native contrast; these figures are manufacturer claims, not independent measurements in the cited comparison. Hisense also lists Dolby Vision and support for a screen up to 150 inches. RTINGS’ comparison Hisense PX3-PRO product page
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Best fit: A darker viewing room where contrast and color are priorities. The advertised maximum image size is not a guarantee that every room or screen can accommodate that size; verify the setup geometry for your chosen diagonal.
Rank #3
- Picture Size up to 150" — Get closer to courtside for sports and gaming, or center stage for your favorite movies, with an immersive big picture; unlike regular-throw projectors, it offers hassle-free placement, projecting images up to 150" from just a few inches away
- Ideal for Bright Rooms — True 3-chip 3LCD technology displays a full 4,000 lumens (3) of color and white brightness for every frame, allowing for outstanding color accuracy while maintaining excellent color brightness without any distracting “rainbowing” or “color brightness” issues seen with other ultra short throw projection technologies
- 4K PRO-UHD (2) — A new type of 4K experience, utilizing advanced pixel-shifting technology to precisely control three individual high-definition LCD chips to produce an exceptionally sharp 4K experience without sacrificing picture brightness.
- 10-Bit HDR — Full 10-bit HDR color processing accepting 100% of the HDR source. When combined with the extreme brightness of 4,000 lumens – HDR content is faithfully reproduced for an exceptional visual performance.
- Modern Ultra Short Throw Laser Design — Sleek ultra short throw laser design seamlessly complements a variety of décor styles and audio/video furniture; features multi-point picture adjustment and individually adaptable feet for quick and easy setup
3. Hisense L9Q — premium large-image option with built-in sound
The L9Q is aimed at buyers seeking a large projection range and a more self-contained setup. TechRadar’s 2026 roundup lists 5,000 lumens and an 80–200-inch projection range. Its review reports Google TV, a ten-speaker sound system, and support for 4K at 60 Hz or 1080p at 240 Hz. These are review-reported features, not a substitute for checking which ports and input conditions are required for the mode you plan to use. TechRadar’s roundup TechRadar’s L9Q review
The trade-offs are its premium positioning and the cost and setup of a screen: TechRadar says the L9Q does not include one. The same review recorded an initial US MSRP of $5,999 and a UK price of £3,999, with first availability in September 2025. These are historical launch figures, not current retail prices. The review’s verdict, by Mark Knapp, was that it was “pricey and lack a screen, but … otherwise the complete package”; that is an individual reviewer’s judgment. TechRadar’s L9Q review
Rank #4
- World’s First UST Projector with Built-in Center Channel Speaker: Innovative center speaker mapping delivers crystal-clear dialogue directly from the screen without extra speakers. Paired with AWOL premium ALR screens and the ThunderBeat 4.2.2 surround sound system, it instantly upgrades your home theater to a 5.2.2 setup. Tip: As an ultra short throw projector, it has a fixed throw ratio of 0.25:1 (approx. 8.54" for 100", 12.84" for 150"). If your cabinet depth is insufficient, use the AWOL motorized Slider to adjust placement for perfect focus and screen size.
- All-Scene 4K 3D Triple Laser Projector: Triple Laser (No Color Wheel) + 4K UHD + Dolby Vision + HDR10+ + 3D support deliver sharp, vibrant images day or night. Combined with Dolby Atmos, enjoy immersive 3D home theater experiences any time. Tip: For the best 4K quality, ensure both your content source and playback device output in 4K resolution.
- Smart Home & Cinema Integration: Supports PJ Link IP control for seamless integration with home automation systems like Control4. Dolby Vision HDR dynamically optimizes color, contrast, and brightness, while Dolby Atmos surrounds you in sound from all directions.
- Explore the 3D Cinematic Realm: Put on active shutter 3D glasses and enter a new dimension. Connect a 3D Blu-ray player to enjoy thrilling 3D movies at home. More than a projector—it’s your key to a new entertainment realm. Source Recommendation: Use 3D Blu-ray discs with a 3D-capable player, or ensure streaming files/content are in 3D format.
- 1+ Billion Colors for Cinema-Grade Visuals: Covers 107% BT.2020 and 147% DCI-P3 for contrast and color accuracy comparable to digital cinemas. With AWOL ALR Daylight screen, enjoy bright, clear images even during the day. Best with 150” screen to replace traditional TVs for an unmatched big-screen experience.
Best fit: A buyer who values the L9Q’s large stated range, integrated streaming, and sound, and has budgeted separately for a compatible screen. Do not treat its 5,000-lumen listing as directly comparable with Epson’s IDMS- and ISO-qualified figures.
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TechRadar’s 2026 roundup names the HU915QE its best UST projector for picture quality and lists 4K, up to 3,700 ANSI lumens, and a 90–120-inch picture size. The same guide flags a high price and some tedious settings as drawbacks. The 3,700 figure is reported in ANSI lumens by TechRadar; compare it cautiously with specifications using other standards. TechRadar’s 2026 UST projector roundup
Best Value
- 【LPU Technology (TriChroma) 】Experience the most advanced pure triple laser light source (Red, Blue, and Green), crafted by Hisense LPU Technology. Pro Laser Engine introduces ultra-realistic colors and unparalleled immersion with super wide color gamut and super high color accuracy, while real-time Pro AI Algorithms enhance brightness, fine tune contrast, and eliminate noise, for the all-encompassing upgrade on visuals.
- 【80''-150" Projection Size】PX3-PRO supports 80–150 inch screen sizes with ultra short throw setup. Just place it close to the wall to get a large, clear image—no need for ceiling mounts or long distances. Ideal for compact rooms, home theater setups, or replacing a large TV.
- 【Ultra Short Throw Technology】PX3-PRO uses ultra short throw technology to project up to 150 inches from just inches away. No ceiling mount, no long cables—place it on a TV stand near the wall and enjoy a large, sharp image. Perfect for small rooms, apartments, or anyone searching for a space-saving home projector.
- 【4K AI Upscaler】PX3-PRO supports native 4K resolution and uses AI upscaling to convert lower-resolution content into detailed 4K images. Powered by a DLP system with 2.07 million micromirrors, it ensures sharp, clear visuals up to 150 inches. Ideal for those searching for 4K projector, AI upscaling projector, or enhanced video quality on a big screen.
- 【Super Wide color Gamut (BT.2020 110%)】Discover a universe of color like never seen. Surpass all other display technologies and achieve 110% BT.2020 color gamut. Discover subtle variations in skin tones, cerulean sky, and rosy cheeks, and the richest and most realistic colors ever. Redefine your viewing experience, movies or natural scenery.
Best fit: A buyer prioritizing the roundup’s picture-quality judgment and targeting an image within the listed size range. Check current price and whether the particular bundle includes a screen before choosing it over a model with a better fit for your room.
5. Hisense PX4 Pro — consider for high-refresh 1080p gaming
What Hi-Fi?’s September 2026 review says the PX4 Pro uses pixel shifting to produce 4K and supports a 1080p/240Hz mode. It reports Hisense’s claim of 3,500 lumens peak brightness; the cited material does not establish that figure as an independent measurement, so it should not be treated as a directly comparable test result. What Hi-Fi?’s PX4 Pro review
Best fit: A shopper interested in a high-refresh 1080p gaming mode who is willing to verify the exact input, connection, and current availability details for their setup. The cited review supports pixel-shifted 4K and the gaming mode; it does not establish a brightness comparison with the other picks.
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Quick comparison
| Model | Evidence-backed reason to consider it | Published brightness figure | Image size or screen note | Key caveat |
|---|---|---|---|---|
| Epson EpiqVision Ultra LS800 | RTINGS says it is brighter than PX3-PRO and better for rooms that are not light-controlled. | Epson specifies 4,000 lumens color brightness (IDMS) and 4,000 lumens white brightness (ISO). | TechRadar lists up to 150 inches. | Brightness figures are standard-specific; its advantage does not establish better contrast. |
| Hisense PX3-PRO | RTINGS says it has better contrast and color than LS800. | Not stated in the cited sources on a directly comparable basis. | Hisense claims support up to 150 inches. | 110% BT.2020 and 3000:1 native contrast are Hisense claims. |
| Hisense L9Q | Google TV, ten-speaker system, and a 1080p/240Hz mode, as reported by TechRadar. | 5,000 lumens, as listed by TechRadar; measurement basis not stated there. | TechRadar lists 80–200 inches; review says no screen is included. | Historical launch prices are not current quotes. |
| LG CineBeam HU915QE | TechRadar names it best for picture quality in its 2026 roundup. | Up to 3,700 ANSI lumens, as listed by TechRadar. | TechRadar lists a 90–120-inch picture size. | TechRadar flags high price and some tedious settings. |
| Hisense PX4 Pro | What Hi-Fi? reports pixel-shifted 4K and a 1080p/240Hz mode. | 3,500 lumens peak brightness, a Hisense claim reported by What Hi-Fi?; measurement basis not stated. | Not stated in the cited review summary. | Confirm current availability and setup requirements for the gaming mode. |
Which one should you buy?
- Your room stays somewhat bright: Start with the Epson LS800 because RTINGS specifically favors its brightness over the PX3-PRO for rooms that are not light-controlled.
- You can darken the room and want stronger contrast and color: Consider the Hisense PX3-PRO, with the qualification that its numerical gamut and contrast specifications are manufacturer claims.
- You want streaming, substantial built-in sound, and a very large image range: Consider the Hisense L9Q, while accounting for the separate screen and checking current local pricing.
- You prioritize a picture-quality pick in the published 90–120-inch range: Look at the LG HU915QE and weigh TechRadar’s price and settings caveats.
- You are interested in high-refresh gaming: Investigate the PX4 Pro’s reported 1080p/240Hz mode and verify the connection requirements for your console or PC.
Before ordering, confirm the projector’s image-size geometry against your room, screen compatibility and inclusion, the source device and input needed for desired gaming modes, and the current price and warranty in your market. A very large maximum diagonal, a high lumen claim, or built-in speakers alone is not enough to establish that a projector suits your particular room.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
