Samsung Odyssey OLED G8 (G81SF) 27" specifications and in-depth review

Samsung Odyssey OLED G8 (G81SF) 27"

Manufacturer: Samsung

The Samsung Odyssey OLED G8 (G81SF) is a 27-inch gaming monitor built around an OLED/AMOLED panel delivering 4K resolution at 3840 x 2160 pixels. With a 240Hz refresh rate and a rated response time of just 0.03ms, it targets users who want both sharp image detail and fluid motion in a single display. The panel carries a matte coating with anti-glare treatment, and its stand supports tilt, swivel, and portrait orientation, along with VESA mount compatibility for flexible placement.

On the visual side, the display reaches a contrast ratio of 1,000,000:1 with 1 billion colors and typical brightness of 250 nits, backed by AMD FreeSync Premium Pro adaptive sync. Connectivity includes two HDMI 2.1 ports, one DisplayPort 1.4 output, three USB 3.1 ports, and a 3.5mm audio jack. The monitor measures 611.7 x 353.8 x 49.2mm and weighs 6,900g, with an operating power draw of 45W and a standby consumption of 0.5W. It also supports Picture-in-Picture and color calibration, and carries an EU energy label of G.

Pros
  • The OLED/AMOLED panel delivers a contrast ratio of 1,000,000:1 alongside support for 1,000 million colors, making dark and bright areas distinctly defined across the screen
  • A 240Hz refresh rate combined with a 0.03ms response time makes the display well-suited for fast-paced gaming sessions where motion clarity matters
  • The stand supports tilt, swivel, and portrait mode rotation, offering a solid range of ergonomic adjustments for different desk setups
  • VESA mount compatibility gives users the option to remove the stand entirely and attach the monitor to a wall bracket or third-party arm
  • Two HDMI 2.1 ports and one DisplayPort 1.4 output provide multiple high-bandwidth video input options for connecting different devices simultaneously
  • AMD FreeSync Premium Pro support enables adaptive synchronization to reduce screen tearing during variable-framerate content
Cons
  • Typical brightness is rated at only 250 nits, which may limit visibility in brightly lit environments
  • The monitor carries an EU energy label of G, indicating it sits at the lower end of energy efficiency ratings
  • There are no built-in stereo speakers, meaning users must rely on external audio solutions or the 3.5mm headset jack
  • Wi-Fi, Ethernet, and AirPlay are all absent, so the monitor has no wireless or network connectivity of its own
  • USB Type-C input is not available, which limits direct connection options for modern laptops and devices that rely on that port
Who is this for?

This monitor is a strong fit for competitive and enthusiast gamers who prioritize motion clarity, given its 240Hz refresh rate, 0.03ms response time, and AMD FreeSync Premium Pro support. The 4K OLED panel with a 1,000,000:1 contrast ratio and 1,000 million colors also makes it well-suited for users who work with color-sensitive tasks such as photo editing or graphic design, especially those who value deep blacks and wide tonal range. The flexible stand with tilt, swivel, portrait mode, and VESA compatibility further appeals to users who need versatile desk ergonomics or plan to use a monitor arm.

Who is this NOT for?

Users who work in brightly lit office environments may find the 250-nit typical brightness insufficient for comfortable viewing under strong ambient light. The absence of built-in speakers, USB Type-C input, Wi-Fi, and Ethernet makes this a poor match for those seeking an all-in-one connected workstation setup without relying on additional peripherals. Additionally, the EU energy label of G means this monitor is not well-suited for users or organizations with a strong focus on energy efficiency or low power consumption over extended daily use.

Display:

Display type OLED/AMOLED
response time 0.03 ms
screen size 27"
resolution 3840 x 2160 px
pixel density 163 ppi
Adaptive synchronization AMD FreeSync Premium Pro
has anti-glare coating
refresh rate 240Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel
has a glossy panel
has a touch screen

The display uses OLED/AMOLED technology on a 27-inch screen with a 3840 x 2160 px resolution and a pixel density of 163 ppi. It supports a 240Hz refresh rate with a response time of just 0.03ms, and pairs with AMD FreeSync Premium Pro for adaptive synchronization. Both horizontal and vertical viewing angles reach 178 degrees, and the panel features a matte, anti-glare coating while omitting a glossy finish and touch input.

General info:

Type Gaming
EU energy label G
supports total tilt
Has a swivel stand
Supports VESA mount
height 353.8 mm
width 611.7 mm
thickness 49.2 mm
weight 6900 g
supports portrait mode
maximum operating temperature 40 °C
lowest potential operating temperature 10 °C
volume 10647.837432 cm³

This is a gaming monitor with an EU energy label of G, measuring 611.7 x 353.8 x 49.2mm and weighing 6,900g. The stand supports tilt, swivel, and portrait mode, and the monitor is also compatible with VESA mounting for wall or arm installation. Operating temperatures range from 10°C to 40°C, and the unit has a total volume of approximately 10,647.84 cm³.

Colors:

brightness (typical) 250 nits
supports color calibration
display colors 1000 million
contrast ratio 1000000:1

The display delivers a contrast ratio of 1,000,000:1 alongside a color depth of 1,000 million colors, producing a wide tonal range across the panel. Typical brightness is rated at 250 nits, and the monitor supports color calibration for users who need more precise color accuracy.

Connectivity:

HDMI ports 2
supports Thunderbolt
DisplayPort outputs 1
DisplayPort version DisplayPort 1.4
has a socket for a 3.5 mm audio jack
has a DVI connector
USB ports 3
USB version 3.1
Has USB Type-C
HDMI version HDMI 2.1
supports Ethernet
supports Wi-Fi
has AirPlay
mini DisplayPort outputs 0
has a VGA connector

The monitor offers two HDMI 2.1 ports and one DisplayPort 1.4 output for video input, alongside three USB 3.1 ports and a 3.5mm headset jack for peripheral and audio connectivity. It does not include USB Type-C, DVI, VGA, or mini DisplayPort outputs, and there is no support for Thunderbolt, Ethernet, Wi-Fi, or AirPlay.

Power:

operating power consumption 45W
standby power consumption 0.5W

During normal use, the monitor draws 45W of power, while in standby mode that figure drops to just 0.5W.

Features:

has PiP
has stereo speakers
has built-in smart TV
has a remote control
supports Dolby Digital
supports Dolby Digital Plus
has DTS Surround
has an ambient light sensor
has a front camera

The monitor includes Picture-in-Picture (PiP) support, allowing multiple sources to be displayed simultaneously. It does not feature stereo speakers, a remote control, an ambient light sensor, or a front camera, and there is no built-in smart TV functionality. Audio formats such as Dolby Digital, Dolby Digital Plus, and DTS Surround are not supported.

Final Verdict

The Samsung Odyssey OLED G8 (G81SF) is a 27-inch gaming monitor that brings together a compelling set of display specifications — most notably its 240Hz refresh rate paired with a 1,000,000:1 OLED contrast ratio — making it a capable choice for users who want both fast, fluid motion and rich, accurate image quality in a single panel. Its ergonomic stand, VESA compatibility, and multi-input connectivity add practical value for varied desk setups, while color calibration support extends its appeal beyond pure gaming. The trade-offs around low typical brightness, absent wireless features, and a low energy efficiency rating mean it won't suit every environment or user type, but within its intended scope as a high-performance gaming display, the G81SF delivers a well-rounded and technically solid package.

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