BenQ EX271QZEX271QZ · 26.5-inch OLED · BenQ UK specification- Native-resolution maximum refresh rate
- 500 HzThis one: 480 Hz
- Typical brightness
- 300 cd/m²This one: 275 cd/m²
UK model 27GX790A-B · black
A 26.5-inch OLED monitor with a 2560 × 1440 panel and a listed 480 Hz native-resolution maximum. The UK specification lists a 249.1 mm depth with the supplied stand.

Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.
LG lists 2560 × 1440 at up to 480 Hz at native resolution. Match the source device, cable and input mode to the stated requirements.
The published with-stand dimensions make it possible to plan desk space without substituting bare-panel measurements.
Refresh, response-time, HDR and colour specifications are manufacturer claims; they do not establish independently measured image quality, input lag or game performance.
Allow room for the listed 249.1 mm stand depth and cable movement. UK documentation does not establish an identical US bundle or a cross-border warranty.
Exact configuration: UK model 27GX790A-B · black
49 specifications in 10 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
LG technical-table diagonal; marketing size may be rounded.
SourceNative panel pixel dimensions, not a benchmark or guarantee of frame rate.
SourceManufacturer panel designation; no independent image-quality result is inferred.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceComplete non-placeholder exact-model feature inventory. NO is explicit; placeholder omissions do not establish absence. Per-feature operating restrictions still apply; these are not independent performance results.
SourceLG expressly names this implementation on this exact model page; the named technology does not establish independently measured image quality.
SourceManufacturer-listed native-resolution maximum. Actual modes depend on input, cable, source hardware and configuration.
SourceManufacturer response-time claim; retain the stated GtG/mode qualification. This is not measured latency, input lag or a cross-model motion result.
SourceExplicit positive in the exact-model table; source implementation/port details remain separately listed.
SourceRetain exact named implementation/certification and model scope; not a generic performance equivalence.
SourceRetain exact named implementation/certification and model scope; not a generic performance equivalence.
SourceExplicit manufacturer typical brightness. Peak HDR brightness/window sizes, where stated, are separate claims; not an independent measurement.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceRetain exact colour space, percentage and CIE basis. Gamut coverage/volume is not an independent colour-accuracy result.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceExplicit positive in the exact-model table; source implementation/port details remain separately listed.
SourceRetain exact named implementation/certification and model scope; not a generic performance equivalence.
SourcePublished application availability is separate from hardware calibration support or a measured calibration result.
SourceManufacturer peak claim from the exact-model overview. The paragraph does not state a window size or measurement mode; keep separate from the 275 cd/m² typical table value and do not treat this as full-screen brightness.
SourceExact-model source does not establish this capability; dash or omission remains unknown, not a negative. · Exact-model source does not establish this capability; dash or omission remains unknown, not a negative.
SourceExact UK manufacturer connection inventory. NO is an explicit source negative; omitted or dash entries remain unresolved. Connector shape does not prove an unlisted generation, data mode, bandwidth or charging protocol.
SourceExact-model source does not establish this capability; dash or omission remains unknown, not a negative. · Exact-model source does not establish this capability; dash or omission remains unknown, not a negative.
SourcePositive downstream USB inventory; computer data requires its actual upstream connection. Connector generation and ports remain as separately sourced in the connection inventory.
SourceThe exact model explicitly lists Height in its stand movement inventory. Exact travel/angle is separate; unlisted movements are not asserted absent.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceThe exact model explicitly lists Swivel in its stand movement inventory. Exact travel/angle is separate; unlisted movements are not asserted absent.
SourceThe exact model explicitly lists Pivot in its stand movement inventory. Exact travel/angle is separate; unlisted movements are not asserted absent.
SourceExact-model certification statement, not measured input lag or a claimed game-frame-rate advantage.
SourceManufacturer tuple and any raised/lowered positions are retained; leave cable clearance and movement room. No axis or travel is invented.
SourceExplicit W axis of the manufacturer with-stand tuple.
SourceExplicit D axis of the manufacturer with-stand tuple; allow separate cable clearance.
SourceExplicit manufacturer with-stand, packaging-excluded measurement basis.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceManufacturer claim under its labelled measurement basis; retain raw precision and qualifications.
SourceExternal adapter DC output rating. It is not typical monitor consumption and cannot establish running cost.
SourceRetain the source inequality and stated operating state; not typical active consumption.
SourceRetain the source inequality and stated operating state; not typical active consumption.
SourceNo typical active-consumption figure is established here. Adapter output, on-mode compliance and sleep limits are not substituted. · No typical active-consumption figure is established here. Adapter output, on-mode compliance and sleep limits are not substituted.
SourceExact-model source does not establish this capability; dash or omission remains unknown, not a negative. · Exact-model source does not establish this capability; dash or omission remains unknown, not a negative.
SourceExplicit positive in the exact-model table; source implementation/port details remain separately listed.
SourceThis exact model source does not explicitly establish built-in-speaker presence or absence. · This exact model source does not explicitly establish built-in-speaker presence or absence.
SourceExact UK source inventory and explicit negatives preserved. Country-dependent power cord/bundle remains qualified; unlisted accessories are not asserted absent.
SourceMore of the nearest checked monitors by key specifications, for a side-by-side comparison.
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