Samsung Odyssey OLED G81SF S27FG810S: Specs, Features, Pros & Cons
This review measures the Samsung Odyssey OLED G81SF S27FG810S against the full 41-spec sheet we track for monitors, comparing it like for like with the 69 other models in our database. It earns a VS Score of 59 out of 100 — the weighted result of every verified specification measured against the class average.
On the spec sheet it is strongest in picture and weakest in connectivity. Its clearest single advantage over the class average: 0.99 ms less response time — 0.03 ms vs 1.02 ms (avg). None of our retail partners currently lists the Samsung Odyssey OLED G81SF S27FG810S, so availability may be limited; a missing price never affects the VS Score. A transparency note: this spec sheet is 63% complete. Anything unverified shows as Unknown and is left out of the score — we never estimate a missing value.
Category strengths
Where the Samsung Odyssey OLED G81SF S27FG810S beats the average
- 0.99 ms less response time ?0.03 ms vs 1.02 ms (avg)
- 499,128.9 :1 more contrast ratio ?1,000,000 :1 vs 500,871.1 :1 (avg)
- 23.63 Hz more refresh rate ?240 Hz vs 216.37 Hz (avg)
- Has USB hub ?
- 0.26 more HDMI ports ?2 vs 1.74 (avg)
- Has pivot ?
- Has headphone output ?
- Has swivel ?
- Has height adjustment ?
- 1.49 % more DCI-P3 coverage ?99 % vs 97.51 % (avg)
Where the Samsung Odyssey OLED G81SF S27FG810S trails the average
- No USB-C ?
- 2.29" (5.81 cm) less screen size ?27" (68.58 cm) vs 29.29" (74.4 cm) (avg)
- No built-in speakers ?
- 0.06 less DisplayPort inputs ?1 vs 1.06 (avg)
Editor’s note
The 27-inch Odyssey OLED G81SF packs 4K resolution and 240 Hz refresh into a smaller screen than most 4K gaming OLEDs. That produces high pixel density for sharp text and fine game detail while retaining OLED’s fast response, deep blacks, and wide viewing angles. It is a strong fit for a normal-depth desk where a 32-inch panel would feel overwhelming.
The combination is demanding. Native 4K at 240 frames per second requires an elite PC in lighter games, and scaling quality should be considered for desktop applications. OLED remains vulnerable to uneven wear from static content, so panel-care features, varied use, and local warranty terms matter. Small text may require operating-system scaling, reducing the usable workspace advantage.
Samsung’s exact S27FG810S documentation should govern brightness, HDR certification, adaptive-sync range, port bandwidth, stand movement, and USB features. The model uses OLED technology and carries a 4K/240 Hz identity, but specifications from the 32-inch G81SF or newer 2026 G80SH should not be copied. Confirm whether HDMI or DisplayPort needs DSC for the highest mode.
Consider it for premium mixed gaming, sharp desktop use, and buyers who prefer 27 inches. Skip it for static office dashboards, systems unlikely to exceed 4K/120, or shoppers seeking bright full-screen HDR. Check the full regional suffix on listings and images; Samsung’s Odyssey naming is crowded, and a G80SF, G80SD, or 32-inch G81SF is not the same product.
At 27 inches, 4K produces very fine detail but usually requires operating-system scaling. Check your main applications for scaling behavior and inspect text clarity in person if possible. The format is excellent for mixed gaming and creative work, while office-only users should weigh OLED care requirements against a less demanding IPS alternative.
Specifications
Quality bars are generated automatically against 69 other monitors.
Picture
Larger screens are more immersive; measured diagonally.
The total pixel count; higher is sharper.
The panel technology; OLED offers the best contrast.
The more specific panel or backlight technology (e.g. QD-OLED, WOLED or Mini-LED VA).
The native or supported bit depth used to reproduce colour gradients.
The display surface treatment and its balance of glare control and image clarity.
Higher refresh rates are smoother for gaming and scrolling.
Grey-to-grey response; lower reduces motion blur.
Higher brightness makes HDR highlights pop.
The ratio between the brightest and darkest output.
Wider colour gamut for more vivid, accurate colour.
The certified HDR tier.
Pixels per inch; higher looks sharper.
Dims parts of the backlight independently to improve contrast.
More independently controlled zones can improve HDR precision.
Gaming
Variable-refresh technology for tear-free motion.
Syncs the refresh rate to the GPU.
Backlight strobing for clearer motion.
The delay between an input and the image changing; lower is better.
The minimum-to-maximum refresh range over which variable refresh rate operates.
Ergonomics & design
The width-to-height ratio (e.g. 16:9, 21:9).
The curve radius (e.g. 1000R); blank for a flat panel.
Raise and lower the panel.
Angle the panel up and down.
Rotate the panel left and right.
Rotate to portrait orientation.
The VESA wall / arm mount pattern (e.g. 100 x 100 mm).
Connectivity
More HDMI inputs connect more devices.
The highest HDMI standard supported by the monitor.
DisplayPort inputs, preferred for high refresh rates.
The highest DisplayPort standard supported by the monitor.
A USB-C input, often with power delivery for laptops.
Charges a connected laptop over USB-C.
Built-in USB ports for peripherals.
Integrated speakers.
A 3.5 mm audio output for headphones or external speakers.
Control two computers with one keyboard and mouse.
Features
A built-in camera for video calls.
A built-in microphone for calls.
A wired network port for USB-C docking.
Shows inputs from two computers side by side.
How the VS Score works — and what it can’t tell you
Every measurable spec is scored against the average of all the monitors we track: matching the class average scores 50, clearly beating it climbs towards 100, and each spec counts according to an editorial weight that reflects real-world impact — a battery-capacity gap moves the score far more than a colour-options list. The quality bars on the spec cards above show where this model sits inside the full range for its class, and the overall VS Score rolls every weighted result into one number.
Unknown values are never estimated. A spec this product doesn’t report simply drops out of its scoring — it isn’t penalised with a guess — but a thinner spec sheet does mean a score built on fewer data points, which is why completeness is disclosed under About this data.
Most importantly: a spec-sheet lead is not the same as a better product. Megapixels, gigahertz and benchmark points describe capacity, not experience — image processing, software optimisation, thermals, haptics and ergonomics decide how a device actually feels, and no table captures reliability or long-term support quality. Treat the VS Score as a structured summary of what can be measured, not a substitute for your own priorities.
About this data
- Specifications are compiled from each manufacturer’s official spec sheet, cross-checked against trusted specification databases, and normalised into one schema so identical things are compared identically.
- Specifications last verified August 4, 2026.
- Data completeness: 26 of the 41 specs in this category are verified (63%). Anything we could not verify is shown as Unknown — never estimated — and is excluded from the score.
- Prices and availability come from live retailer feeds via our shopping partners and refresh throughout the day; a missing price means no partner currently lists the product, not that it is discontinued.
- Want the full picture? Our editorial guidelines explain how we research products, weight the scores and stay independent.
- Spotted an error in a spec? Tell us and we will correct the sheet.
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The bottom line
The Samsung Odyssey OLED G81SF S27FG810S earns a VS Score of 59, comfortably above average among the 70 monitors we compare here. It stands out for 0.99 ms less response time, 499,128.9 :1 more contrast ratio and 23.63 Hz more refresh rate. Just be aware of no USB-C and 2.29" (5.81 cm) less screen size before you buy. For most buyers it is an easy recommendation.
The VS Score is generated automatically from the weighted specifications above, measured against all other monitors in our database. Treat it as a shortlisting guide — not a substitute for your own priorities.
