Samsung G81SF computer monitor 68.6 cm (27 inch) 3840 x 2160 pixels 4K Ultra HD OLED Silver

The Samsung G81SF 27" OLED 3840 x 2160 is a 27-inch 4K Ultra HD OLED monitor designed for accurate imagery and fast on-screen response. With an OLED panel, a native resolution of 3840 x 2160 and a 16:9 aspect ratio, the display delivers deep contrast (typical 1000000:1) and wide viewing angles of 178° horizontally and vertically. The screen has a typical brightness of 250 cd/m² and an ultra-fast response time of 0.03 ms. The monitor is available in a silver finish and supports VESA mounting, height adjustment and a built-in USB 3.2 Gen 1 hub for peripheral connections.

Advantages

The OLED panel provides superior contrast and true blacks compared to conventional LCDs, enabling high-fidelity image reproduction suitable for photo editing, video review and content creation. The 4K (3840 x 2160) resolution offers detailed pixel density on a 27-inch screen, while the 0.03 ms response time reduces motion blur in fast-moving content. Built-in USB 3.2 Gen 1 hub simplifies connection of external drives and accessories. VESA mounting and height adjustment allow flexible ergonomic placement, and the flat screen design supports consistent color and geometry across the panel.

Suitable for

• Photo and video editing where high contrast and color detail are required
• Professional content review and digital design tasks
• Productivity workflows that benefit from 4K resolution on a 27" screen
• General office work with ergonomic monitor positioning (VESA, height adjustment)
• Casual and competitive gaming requiring low response time

Key specifications

• Display diagonal: 27 "
• Display resolution: 3840 x 2160 (4K Ultra HD)
• Panel type / technology: OLED
• Aspect ratio: 16:9
• Response time: 0.03 ms
• Contrast ratio (typical): 1000000:1
• Display brightness (typical): 250 cd/m²
• Viewing angles: 178° / 178°
• Screen shape: Flat
• Built-in USB hub: Yes (USB 3.2 Gen 1)
• VESA mounting: Yes
• Built-in speaker(s): No
• Energy efficiency class (SDR/HDR): G / G
• Energy consumption (SDR/HDR) per 1000 h: 45 kWh / 52 kWh
• Product colour: Silver

How to use

Place the monitor on a stable desk or attach it to a VESA-compatible arm or bracket. Connect the display to your computer using a compatible video cable that supports 4K output, and plug in the power cable. Use the built-in USB 3.2 Gen 1 hub to connect peripherals or external storage; ensure host PC drivers are up to date to recognise connected devices. Adjust the height and ergonomic settings to achieve a comfortable viewing angle. Configure display resolution and refresh settings in the operating system to 3840 x 2160 for native performance, and calibrate color settings if accurate color reproduction is required.

Recommendations

For best image accuracy, perform hardware or software calibration with a colorimeter when using the monitor for professional color work. Keep firmware and graphics drivers updated to maintain compatibility with HDR and 4K features. To reduce burn-in risk on OLED panels during static-image use, enable screen savers, vary displayed content and follow manufacturer guidelines for brightness and standby settings.