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LG UltraGear 32GX870A-B

UK model 32GX870A-B · black

Screen diagonal
31.5 in
Native resolution
3840 × 2160
Native-resolution maximum refresh rate
240 Hz

A 31.5-inch OLED monitor with a 3840 × 2160 panel and a listed 240 Hz native-resolution maximum. The UK specification lists a 249.8 mm depth with the supplied stand.

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THE ACTUAL PRODUCT
LG UltraGear 32GX870A-B exact UK-model official front view on its supplied stand.
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with BenQ EX321UZ

Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.

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The nearest checked monitors by key specifications, with what differs from the LG UltraGear 32GX870A-B. The first matches the Compare button above.

The useful part.

Key strengths

LG lists 3840 × 2160 at up to 240 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.

The checks that matter.

Before you buy

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 249.8 mm stand depth and cable movement. UK documentation does not establish an identical US bundle or a cross-border warranty.

Every specification. With its source.

Full specifications

Exact configuration: UK model 32GX870A-B · black

50 specifications in 10 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.

Screen & panel

8 items
Screen diagonal
31.5 in

LG technical-table diagonal; marketing size may be rounded.

Source
Native resolution
3840 × 2160

Native panel pixel dimensions, not a benchmark or guarantee of frame rate.

Source
Panel technology
OLED

Manufacturer panel designation; no independent image-quality result is inferred.

Source
Aspect ratio
16:9

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Published pixel pitch
0.1814 x 0.1814

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Viewing angles and stated basis
178º(R/L), 178º(U/D)

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Other listed display and on-screen functions
HDR 10: Yes; VESA DisplayHDR™: DisplayHDR™400 TRUE BLACK; HDR Effect: Yes; Color Calibrated in Factory: Yes; HW Calibration: HW Calibration Ready; Reader Mode: Yes; Color Weakness: Yes; NVIDIA G-Sync™: G-SYNC Compatible; AMD FreeSync™: FreeSync Premium Pro; VRR: Yes; Black Stabiliser: Yes; Dynamic Action Sync: Yes; Crosshair: Yes; FPS Counter: Yes; User Defined Key: Yes; Auto Input Switch: Yes; RGB LED Lighting: Unity Hexagon Lighting; Smart Energy Saving: Yes; Live Color Low Blue Light: Yes; VESA Adaptive Sync: Yes; VESA ClearMR: 13000; VESA Dual-Mode: UHD 240Hz / FHD 480Hz

Complete 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.

Source
Published OLED implementation
Micro Lens Array+ (MLA+)

LG expressly names this implementation on this exact model page; the named technology does not establish independently measured image quality.

Source

Refresh & response

7 items
Native-resolution maximum refresh rate
240 Hz

Manufacturer-listed native-resolution maximum. Actual modes depend on input, cable, source hardware and configuration. UHD 3840 × 2160 is 240 Hz; separate FHD 1920 × 1080 Dual-Mode is 480 Hz.480 Hz is not the native 4K rate.

Source
Published response-time claim
0.03ms

Manufacturer response-time claim; retain the stated GtG/mode qualification. This is not measured latency, input lag or a cross-model motion result.

Source
Variable-refresh support
Yes

Explicit positive in the exact-model table; source implementation/port details remain separately listed.

Source
Published sync implementations
G-SYNC Compatible

Retain exact named implementation/certification and model scope; not a generic performance equivalence.

Source
AMD FreeSync implementation
FreeSync Premium Pro

Retain exact named implementation/certification and model scope; not a generic performance equivalence.

Source
Resolution-specific Dual-Mode
3840 × 2160 at 240 Hz; FHD 1920 × 1080 at 480 Hz

Separate source-labelled modes. Lower-resolution 480 Hz cannot become native 4K refresh or a measured game-performance advantage.

Source
Published response-time setting footnote
Faster Mode footnote: 1 ms

The same page separately advertises 0.03 ms and has a Faster Mode footnote naming 1 ms. Both source statements are retained; no unqualified real-world response or presumed equivalence of settings is asserted.

Source

Colour, brightness & HDR

8 items
Typical brightness
275 cd/m²

Explicit manufacturer typical brightness. Peak HDR brightness/window sizes, where stated, are separate claims; not an independent measurement.

Source
Published colour depth
1.07B

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Typical static contrast
1500000:1

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Typical colour gamut and basis
98.5% DCI-P3

Retain exact colour space, percentage and CIE basis. Gamut coverage/volume is not an independent colour-accuracy result.

Source
Minimum brightness claim
250

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
HDR10 support
Yes

Explicit positive in the exact-model table; source implementation/port details remain separately listed.

Source
HDR certification
DisplayHDR™400 TRUE BLACK

Retain exact named implementation/certification and model scope; not a generic performance equivalence.

Source
Listed control and calibration software
LG Calibration Studio (True Color Pro): Yes; Dual Controller: Yes; LG Switch: Yes

Published application availability is separate from hardware calibration support or a measured calibration result.

Source

Inputs & connections

5 items
USB-C connection
Yes

Explicit positive in the exact-model table; source implementation/port details remain separately listed.

Source
Inputs, connections and stated versions
HDMI: 2ea; DisplayPort: 1ea; DP Version: 2.1 (DSC); USB-C: 1ea; USB-C (Data Transsmission): Yes; USB-C (Power Delivery): 90W; USB Downstream Port: 2ea; Headphone output: 4-pole (Sound + Mic); DP (HDCP Version): 2.3; HDMI (HDCP Version): 2.3

Exact 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.

Source
Built-in KVM
Not listed by the manufacturer

Exact-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.

Source
USB hub
Yes

Positive downstream USB inventory; computer data requires its actual upstream connection. Connector generation and ports remain as separately sourced in the connection inventory.

Source
Highest listed USB-C / Thunderbolt power delivery
90 W

Stated monitor output to a compatible connected device, not monitor input power or an unconditional charging speed.

Source

Stand & mounting

5 items
Height-adjustable stand
Yes

The exact model explicitly lists Height in its stand movement inventory. Exact travel/angle is separate; unlisted movements are not asserted absent.

Source
VESA mounting pattern
100 x 100

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Listed stand movements
Tilt/Height/Swivel/PivotSource
Swivel-adjustable stand
Yes

The exact model explicitly lists Swivel in its stand movement inventory. Exact travel/angle is separate; unlisted movements are not asserted absent.

Source
Pivot support
Yes

The exact model explicitly lists Pivot in its stand movement inventory. Exact travel/angle is separate; unlisted movements are not asserted absent.

Source

Size, weight & build

6 items
Dimensions with stand
714.1 x 510.9 x 249.8 mm (width × height × depth, with stand)

Manufacturer tuple and any raised/lowered positions are retained; leave cable clearance and movement room. No axis or travel is invented.

Source
Width with stand
714.1 mm

Explicit W axis of the manufacturer with-stand tuple.

Source
Depth with stand
249.8 mm

Explicit D axis of the manufacturer with-stand tuple; allow separate cable clearance.

Source
Weight with stand
9.8 kg

Explicit manufacturer with-stand, packaging-excluded measurement basis.

Source
Dimensions without stand
714.1 x 411.8 x 65.0

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Weight without stand
5.6

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source

Power & energy

6 items
Power supply
External Power(Adapter)

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
AC input rating
100~240V (50/60Hz)

Manufacturer claim under its labelled measurement basis; retain raw precision and qualifications.

Source
Sleep power claim and inequality
Less than 0.5W

Retain the source inequality and stated operating state; not typical active consumption.

Source
DC-off power claim and inequality
Less than 0.3W

Retain the source inequality and stated operating state; not typical active consumption.

Source
Typical operating power
Not listed by the manufacturer

No 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.

Source
Published on-mode power
56.36W

Manufacturer separately labels this On-Mode. It is not silently relabelled typical or an independent running-cost measurement.

Source

Eye care & features

2 items
Flicker Safe declaration
Not listed by the manufacturer

Exact-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.

Source
Reader mode
Yes

Explicit positive in the exact-model table; source implementation/port details remain separately listed.

Source

Audio

2 items
Built-in speakers
Yes

Exact-model speaker inventory; audio output is not an independent loudness or quality test.

Source
Listed speaker configuration
7W x 2Source

Box, warranty & identity

1 item
Listed regional accessories
HDMI: Yes; USB-C: Yes; Display Port: Yes; Adapter: Yes; Power Cord: Yes

Exact UK source inventory and explicit negatives preserved. Country-dependent power cord/bundle remains qualified; unlisted accessories are not asserted absent.

Source
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