LG has officially launched the CineBeam S (PU615U), a compact ultra-short throw (UST) projector that’s redefining what small form-factor projectors can deliver. First showcased at CES 2025, the CineBeam S merges premium 4K laser projection, smart features, and ultra-portability into one sleek cube. Here’s everything you need to know.

Minimalist Size Meets Maximum Impact
Weighing just 1.9 kg and measuring 110 × 160 × 160 mm, the CineBeam S is one of the smallest UST projectors on the market. Its minimalist cube design, hidden lens, and matte metallic finish make it blend effortlessly into modern interiors, especially for users with limited space or a preference for non-intrusive tech.
Thanks to its 0.25:1 throw ratio, the projector can display a 100-inch screen from just 39 cm away from the wall. That means no need for ceiling mounting, long throw distances, or complicated setups.
Picture Quality: 4K Clarity with Vibrant Color
Despite its small size, the CineBeam S doesn’t compromise on image quality. It features:
- 4K UHD resolution (3840×2160)
- Triple-laser RGB light engine
- 154% DCI-P3 color coverage
- 450,000:1 contrast ratio
These specs translate into vivid, color-accurate, and sharp visuals—making it suitable for watching movies, streaming shows, and casual gaming. The projector’s 500 ANSI lumens brightness is optimized for dim to moderately lit environments. While not ideal for bright daylight use, it’s sufficient for most home scenarios.

Sound and Smart OS Built-In
For audio, the CineBeam S includes stereo speakers with Dolby Atmos, offering immersive sound without the need for external speakers. It’s not home-theater-grade bass, but the clarity and directionality are impressive for a projector of this size.
The projector also runs LG’s webOS, which supports native access to major streaming apps like Netflix, Disney+, and YouTube. With AirPlay 2, Screen Share, and Bluetooth support, casting content from smartphones and tablets is seamless.
Intelligent Setup and Everyday Flexibility
Setup is made easy with smart tools like:
- Auto focus and auto keystone correction
- Screen scaling and shifting
- Wall color adjustment for non-white surfaces
- Obstacle detection and alignment assistance
These features make the CineBeam S beginner-friendly and well-suited for renters or those who frequently rearrange their space.
Where It Fits Best
🏠 Small Living Rooms or Studios
Ideal for users with limited space who want a clean, wire-free setup and a large screen experience.
🧳 Portable Home Theater
Its compact form makes it easy to move from room to room or even bring along for weekend trips and presentations.
📺 Cord-Cutters & Streamers
With webOS and native app support, you don’t need a separate streaming box or dongle—just plug in and play.

A Few Limitations
While the CineBeam S offers strong overall performance, it’s important to consider:
- Brightness is limited to 500 ANSI lumens, making it less effective in brightly lit rooms.
- It requires a constant power supply, with no built-in battery for cordless operation.
- The maximum screen size is 100 inches, which may be limiting for those seeking a full-scale theater experience.
CineBeam S at a Glance
| Feature | Specification |
|---|---|
| Resolution | 4K UHD (3840×2160) |
| Brightness | 500 ANSI lumens |
| Light Source | RGB Triple Laser |
| Color Coverage | 154% DCI-P3 |
| Contrast Ratio | 450,000:1 |
| Throw Ratio | 0.25:1 |
| Projection Size | 40–100 inches |
| Audio | Stereo speakers with Dolby Atmos |
| OS | webOS (with built-in streaming) |
| Dimensions | 110 x 160 x 160 mm |
| Weight | 1.9 kg |
Final Thoughts
The LG CineBeam S (PU615U) stands out as a compact yet highly capable UST projector. It’s not just about saving space—it’s about maximizing usability in everyday life. While its brightness may not suit all environments, its smart features, cinematic visuals, and plug-and-play simplicity make it an excellent choice for modern homes, especially where space is at a premium.
If you’re looking for a stylish, 4K-capable projector that fits on a shelf and doesn’t require a complicated setup, the CineBeam S is one of the most interesting releases of 2025.
Looking for a Brighter Alternative?
While the LG CineBeam S excels in portability and smart features, users who prioritize higher brightness and a more traditional living room setup may consider alternatives like the Dangbei DBOX02.

This model features a 4K UHD resolution, laser light source, and 2,450 ISO lumens, making it much more suitable for well-lit environments and daytime viewing. The DBOX02 also runs on native Netflix-certified Android OS, supports Dolby Audio, and includes features like AI autofocus, auto keystone, and Bluetooth voice remote. It’s a strong choice for those seeking a brighter and more powerful home theater experience without moving to ultra-short throw formats.
Whether you choose compact UST convenience like the CineBeam S, or go for brightness and immersive scale with the Dangbei DBOX02, both offer compelling options for 2025’s evolving home entertainment needs.
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