LG UltraGear 39GX950B-B: specs and price
This review measures the LG UltraGear 39GX950B-B against the full 34-spec sheet we track for monitors, comparing it like for like with the 4 other models in our database. It earns a VS Score of 56 out of 100 — the weighted result of every verified specification measured against the class average.
On the spec sheet it is strongest in features and weakest in ergonomics & design. Its clearest single advantage over the class average: 0.19 ms less response time — 0.03 ms vs 0.22 ms (avg). None of our retail partners currently lists the LG UltraGear 39GX950B-B, so availability may be limited; a missing price never affects the VS Score.
Category strengths
Where the LG UltraGear 39GX950B-B beats the average
- 0.19 ms less response time ?0.03 ms vs 0.22 ms (avg)
- 9.58 " more screen size ?38.6 " vs 29.02 " (avg)
- Has USB-C ?
- 300 nits more peak brightness ?1,500 nits vs 1,200 nits (avg)
- Has USB hub ?
- Has picture-by-picture ?
- 11.8 ppi more pixel density ?139 ppi vs 127.2 ppi (avg)
- 0.94 % more DCI-P3 coverage ?99.5 % vs 98.56 % (avg)
Where the LG UltraGear 39GX950B-B trails the average
- 48 Hz less refresh rate ?165 Hz vs 213 Hz (avg)
- 0.6 :1 less contrast ratio ?1 :1 vs 1.6 :1 (avg)
- No motion blur reduction ?
- No pivot ?
- No local dimming ?
- No KVM switch ?
Specifications
Quality bars are generated automatically against 4 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.
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.
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.
DisplayPort inputs, preferred for high refresh rates.
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.
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 July 21, 2026.
- Data completeness: 32 of the 34 specs in this category are verified (94%). 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 LG UltraGear 39GX950B-B earns a VS Score of 56, a solid mid-pack result among the 5 monitors we compare here. It stands out for 0.19 ms less response time, 9.58 " more screen size and has USB-C. Just be aware of 48 Hz less refresh rate and 0.6 :1 less contrast ratio before you buy. Weigh those trade-offs against what matters most to you.
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.