Highlights
Ultra-sharp
Plug. Play. Display.
Connector
Smart Projector 4K | SB-502
Bright & High-Contrast Picture: 170 ANSI Lumens, 1000:1 Contrast
HD Quality & 4K-ready: Sharp images for impressive projections
Auto Keystone & Trapezoid Correction: Automatic Image Alignment
Wireless Screen Mirroring: Wireless for Android & iOS
Android 11 Open OS: Install apps and stream
Highlights
Ultra-sharp
Plug. Play. Display.
Connector
Meaningful upgrades
Delivery within 2-3 business days
Free shipping from €100 ¹
Free returns within 14 days.²
2-year replacement warranty³
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Smart Beamer 4K for streaming and presentations
This powerful projector is a versatile solution for modern projections and flexible applications. Thanks to its compact design, it can be easily placed in any room or transported for mobile use. The combination of smart technology and user-friendly functions ensures an impressive viewing experience for movies, series, or presentations.
Bright & high-contrast image: 170 ANSI lumens and 1000:1 contrast
Content appears in high clarity with a brightness of 170 ANSI lumens. The contrast ratio of 1000:1 ensures a clean separation between light and dark image areas for a natural display. Even in dimly lit rooms, the image remains vibrant, bringing all media to life optimally.
Sharp details: HD quality and 4K-ready for impressive projections
Image reproduction is in razor-sharp HD resolution for a detailed display of all content. Since the device is also 4K-ready, high-resolution sources can be played back without problems and with improved image depth. Every detail is precisely reproduced, enabling an immersive experience for movies and games.
Automatic image alignment: Auto-Keystone and trapezoidal correction
The integrated Auto-Keystone function eliminates the need for tedious manual adjustment of image geometry. Automatic trapezoidal correction immediately detects distortions and precisely aligns the image rectangularly with the projection surface. This offers maximum flexibility in setup, even if central placement of the projector is not possible.
Wireless Freedom: Wireless Screen Mirroring for Android & iOS
Content from smartphones or tablets can be transmitted via Wireless Screen Mirroring without annoying cables. The function supports both Android and iOS, allowing photos and videos to be shared directly from the mobile device. This wireless transmission increases comfort and ensures a tidy setup without additional adapters.
Smart Entertainment: Android 11 Open OS for Streaming
With the pre-installed Android 11 Open OS, the projector functions as an independent smart TV hub. Popular streaming apps can be installed directly, meaning external laptops or TV sticks are no longer strictly necessary. The intuitive user interface allows quick access to all applications and offers modern ease of use.
Extensive Connectivity: HDMI, USB, WiFi 6 and Bluetooth 5.4
Physical interfaces such as HDMI, USB and a 3.5 mm jack are available for a variety of playback devices. In addition, state-of-the-art WiFi 6 and Bluetooth 5.4 offer fast and stable wireless connections. Whether external hard drives, game consoles or Bluetooth speakers - the comprehensive compatibility covers all common requirements.
Maximum Flexibility: Image Size from 1 to 3.3 meters
The cinema experience can be individually adapted to the spatial conditions with an image size of up to 3.3 meters. The projector remains flexible and delivers excellent results even from a short distance for a 1-meter image. This makes the device the ideal choice for large-screen enthusiasts, both for small rooms and for large wall surfaces.
Technical Data
| Processor Model | Allwinner H713 Quad-core ARM Cortex-A53 |
| Operating System | Open OS |
| Power | 39 W |
| Projection Ratio | 16:9 / 4:3 |
| Projection Distance | 1.2 – 3.7 m |
| Projection Size | 1 m to 3.3 m |
| Matrix Type | LCD |
| Matrix Size | 1280 x 720 (native HD) |
| Supported Resolutions | 1080p / 4k |
| Brightness | 170 ANSI |
| Contrast | 1,000:1 |
| Keystone Correction | Digital vertical ±35° |
| Speaker | 1x 3.0 W |
| Speaker Impedance | 4 Ω |
| Noise Level | I (30 – 50 dB) |
| Internal Memory | 8 GB |
| Bluetooth® Standard | 5.4 |
| Bluetooth® Range | 0 – 10 m |
| Frequency Band | 2.4 GHz, 5 GHz |
| Frequency Range | WiFi: 2.412 – 2.484 GHz, 5.180 – 5.825 GHz |
| Bluetooth® | 2402 MHz – 2480 MHz |
| Max. Transmit Power | 20 dBm |
| Power Supply | Projector: Input AC 100-240V / 50-60Hz / 39W |
| Remote Control | 2x AAA batteries (1.5 V) |
| Connections | Power connection (1.2 m), USB-A port (5V, supports FAT16 / FAT32/NTFS (max. 128 GB), hard drives max. 2 TB (requires external power supply), HDMI port, 3.5 mm mini headphone output, 1/4-inch port |
| Dimensions (L x W x H) | Weight | 10.3 x 10.2 x 19.0 cm | 0.5 kg |
Compatibility
Scope of delivery
Downloads
All available downloads for this product can be found in our download center.
There you will find operating instructions (BDA), firmware updates, software, drivers, and other product-related files.
👉 To the download center:
https://downloads.rollei.de
Please simply select your product there to access all current files.
Special Notes
GPSR, Regulation (EU) 2023/988)
Everything you need to know.
Answers at a glance.
Here you can find the most common questions about Smart Projector 4K | SB-502. If anything remains unclear, our support team will be happy to help you.