LG’s CineBeam S (PU615U) is a compact 4K ultra-short-throw projector designed to sit close to a wall or screen. LG specifies a 40–100-inch image range, 500 ANSI lumens, RGB laser light source, webOS, and Dolby Atmos-capable stereo speakers. Its launch materials use the term “RGB laser”; they do not independently verify a particular three-laser architecture.
What LG announced
LG introduced the CineBeam S at CES 2025 as its smallest 4K ultra-short-throw projector. It is model PU615U, not the earlier CineBeam Qube (HU710PB). The compact format is intended for viewers who want a large projected image without placing a projector far across the room. LG describes the CineBeam S as capable of projecting from close to the viewing surface; its later global-rollout announcement gives specific placement distances.
LG’s January 2, 2025 US announcement calls the light source “Laser (RGB),” while its August 5, 2025 global announcement describes an “advanced RGB laser system.” Those are the manufacturer’s descriptions. “Triple laser” can suggest RGB primaries, but the cited announcements do not establish further construction details beyond the RGB laser terminology.
How close does it sit to the wall?
According to LG’s August 5, 2025 global announcement, the CineBeam S can produce a 40-inch image from 8.1 cm away and a 100-inch image from 39.3 cm away. The full stated image range is 40–100 inches. These are manufacturer specifications, not independently measured placement results.
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- Ultra-Short Throw Display for a 4K Cinematic Experience - Get big-screen, 4K entertainment in small spaces with this ultra-short throw projector. Featuring triple laser projection, smart streaming, and Dolby Atmos sound—all in a compact, stylish design.
- 4K Clarity with Color that Pops - Experience 4K UHD resolution with stunning clarity and sharp detail—even on a 100" screen. Up to 154% DCI-P3 color gamut and 450,000:1 contrast ratio deliver vibrant color and deep contrast for a rich, cinematic viewing experience.
- Compact Stylish Design that Fits Your Space - Sleek, minimal, and compact at just 4.3" x 6.3" x 6.3", the CineBeam S fits easily into any space—delivering big-screen performance without dominating your room or your setup.
- Scenes Explode with Stunning Color - Bring every scene to life with vibrant, bold color. With up to 154% DCI-P3 color gamut, the CineBeam S projector delivers rich tones and deeper hues—so movies, games, and streaming content look stunning.
- Laser-Focused Color - Experience next-level color with triple laser projection. Using separate red, green, and blue lasers, the CineBeam S projector delivers bold color, exceptional brightness, and a wider gamut—ideal for rich, immersive visuals.
Ultra-short-throw (UST) projection is useful when a room cannot accommodate a projector mounted well back from the screen. It can reduce the need to route cables across a room or reserve a table at the rear. The viewing surface still matters: LG says the projector supports wall-color adjustment, but that feature alone does not establish how a particular wall or third-party screen will perform.
LG’s published specifications
| Specification | LG’s published figure or feature |
|---|---|
| Model | CineBeam S, PU615U |
| Resolution | 4K UHD, 3,840 × 2,160 (LG Electronics USA, 2025) |
| Brightness | 500 ANSI lumens (LG Electronics USA, 2025) |
| Contrast ratio | 450,000:1 (LG Electronics USA, 2025) |
| Image size | 40–100 inches (LG Electronics USA, 2025) |
| Minimum throw ratio | 0.25 (LG Electronics USA, 2025) |
| Light source | Laser (RGB), in the US specification; RGB laser system, in LG’s global announcement |
| Color gamut | 154% DCI-P3 coverage (LG Electronics, global announcement, 2025; manufacturer claim) |
| HDR formats | HDR10 and HLG (LG Electronics USA, 2025) |
| Dimensions | 110 × 160 × 160 mm (LG Electronics USA, 2025) |
| Weight | 2.5 kg in LG’s January 2025 US table; 1.9 kg in its August 2025 global-rollout release. LG’s published figures conflict. |
The figures above come from LG’s launch and rollout materials. They do not establish independent brightness, contrast, color, HDR, or image-quality performance in a room.
Rank #2
- CineBeam S features Ultra Short Throw, projecting panoramic imagery within an exceptionally short throw distance. Transform your space with a stunning 100-inch cinema screen.
- Full-scale theater viewing at home enhanced by a 4K 100" screen.
- DCI-P3 154% & Triple Laser
- 450,000 : 1 Contrast ratio
- 500 ANSI Lumens Brightness
Connections, smart features, and sound
Inputs and wireless sharing
LG lists one HDMI input and two USB Type-C ports. The US announcement also describes Android and iOS wireless support; the global announcement names Apple AirPlay 2 and Screen Share. LG does not specify further port capabilities in the cited announcements, so check a current regional product page or manual if you need a particular Type-C function.
Streaming and setup features
The projector runs webOS, and LG describes access to streaming services. Its global announcement also lists Auto Screen Adjustment, Screen Scaling & Shifting, and Wall Color Adjustment. These features are intended to simplify setup and adaptation to the projection surface; the announcements do not provide independent usability findings.
Rank #3
- Auto Screen Adjustment - With Auto Screen Adjustment, the CineBeam Q automatically adjusts screen alignment to remove image distortion and optimize with Auto Focus when it's placed on a surface. Simply place and play
- Portability - A portable design makes it easy to transport the 3lb projector anywhere with a power source.
- 4K UHD 120” screen - Enjoy sharp contrast and impeccable color with brilliant 4K resolution and a big 120" screen.
- WebOS - Stream the latest hit series and blockbuster films right from your projector with webOS, supporting popular platforms like Netflix, Prime Video, Disney plus , YouTube, and Apple TV.
- Apple Airplay - From your iPhone or Android device to the big screen—with no cords necessary. Wirelessly cast or mirror content from your iOS/MacOS or Android devices to show off your photos and videos, share playlists, or take mobile gaming to epic heights with Apple AirPlay 2 or Screen Share on Android.
Built-in audio
LG specifies stereo speakers with Dolby Atmos support. That describes the included audio feature set, not a measured listening result or a guarantee of a particular surround effect in every room.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the announcements do—and do not—establish
The launch information identifies the format, core specifications, connections, and software features. It does not provide a current price or country-by-country availability, and it contains no independent review results for picture quality, sound, fan noise, gaming latency, HDR behavior, or ease of use. Treat performance figures and feature descriptions as LG claims rather than tested conclusions.
Rank #4
- 4k UHD: Details astound in Brilliant 4K—with 4x the pixel density of FHD. Watch scenes unfold in sharp contrast and jaw-dropping color for immersion you have to see to believe.
- Up to 1000 ANSI Lumens: Content shines in 1,000 ANSI Lumens, delivering brilliance regardless of ambient lighting—both indoors or out.
- Entertainment: Stream the latest hit series and blockbuster films right from your projector with webOS, supporting popular platforms like Prime Video, Disney Plus, YouTube, and Apple TV.
- Auto Screen Adjustment: Set up is faster and easier than ever with Auto Screen Adjustment (ASA). This projector intuitively optimizes the screen alignment and focus to remove distortion.
- HDR10 and HLG: Experience continual picture excellence with support for HDR10 and HLG, delivering a wide color gamut and peak brightness across your content. Plus, Dynamic Tone Mapping optimizes every frame, striking the right balance between highlights and shadows so you never miss a detail.
LG’s August 2025 release quotes YS Lee, head of IT Business at LG Media Entertainment Solution Company, saying: “The LG CineBeam S is a testament to our commitment to innovation, and to bringing a truly premium home cinema experience to a wider audience,” This is a corporate promotional statement, not independent product validation.
How it relates to the CineBeam Qube
The CineBeam Qube (HU710PB) is an earlier LG lifestyle projector, while the CineBeam S is the PU615U UST model announced in 2025. LG’s releases establish that distinction, but they do not provide like-for-like independent tests or comparative value data. The announcements therefore do not support a claim that one is better than the other on performance.
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