UK manufacturer model · 34GX900A-B
LG 34GX900A-B in its manufacturer-documented UK configuration. The complete source table retains its published display, connection, software and physical conditions.
Specifications checked 17 Oct 2026.
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Manufacturer specificationsChoose the 34GX900A-B for
Choose the 39GX900A-B for
UK manufacturer model · 39GX900A-B
LG 39GX900A-B in its manufacturer-documented UK configuration. The complete source table retains its published display, connection, software and physical conditions.
Specifications checked 17 Oct 2026.
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Differences first. Select a topic for its graphic, sources and conditions.
Panel diagonal. Resolution, aspect ratio and viewing distance also affect the workspace; a larger diagonal is not an image-quality score.
Match the monitor to the connection. Refresh limits depend on the input, cable and source device. Confirm the exact regional ports, stand adjustment and mount. Manufacturer response-time methods such as MPRT and GtG are different; neither the image nor these figures establish an independent motion or colour-quality test.
9 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Manufacturer specification · Actual manufacturer display-table diagonal. Original: 33.9
LG 34GX900A-B — official UK product specificationsManufacturer specification · Actual manufacturer display-table diagonal. Original: 39
LG 39GX900A-B — official UK product specificationsCheck the exact configuration and source conditions for your use.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Manufacturer specification · Original manufacturer axes, units and up/down/stand configurations retained.
LG 34GX900A-B — official UK product specificationsManufacturer specification · Original manufacturer axes, units and up/down/stand configurations retained.
LG 39GX900A-B — official UK product specificationsA size or weight trade-off; it does not establish the better product.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
46 shared fields have the same recorded value.
| Specification | LG 34GX900A-B | LG 39GX900A-B |
|---|---|---|
Screen diagonalDifferent SourcesLG 34GX900A-B Manufacturer specification · Actual manufacturer display-table diagonal. Original: 33.9 LG 34GX900A-B — official UK product specificationsLG 39GX900A-B Manufacturer specification · Actual manufacturer display-table diagonal. Original: 39 LG 39GX900A-B — official UK product specifications | 33.9 in | 39 in |
Native resolution Sources | 3440 x 1440 | 3440 x 1440 |
Panel technology Sources | OLED | OLED |
DISPLAY — Size [cm]Different Sources | 86.2 | 99.1 |
DISPLAY — Aspect Ratio Sources | 21:9 | 21:9 |
DISPLAY — Pixel Pitch [mm]Different Sources | 0.231 × 0.231 mm | 0.266 x 0.266mm |
DISPLAY — Color Gamut (Min.) Sources | DCI-P3 94% (CIE1976) | DCI-P3 94% (CIE1976) |
DISPLAY — Color Gamut (Typ.) Sources | DCI-P3 98.5% (CIE1976) | DCI-P3 98.5% (CIE1976) |
DISPLAY — Color Depth (Number of Colors) Sources | 1.07B | 1.07B |
DISPLAY — Contrast Ratio (Min.) Sources | 1200000:1 | 1200000:1 |
DISPLAY — Contrast Ratio (Typ.) Sources | 1500000:1 | 1500000:1 |
DISPLAY — Viewing Angle (CR≥10) Sources | 178º(R/L), 178º(U/D) | 178º(R/L), 178º(U/D) |
DISPLAY — Curvature Sources | 800R | 800R |
DISPLAY — Brightness (Min.) [cd/m²] Sources | 250cd/㎡ | 250cd/㎡ |
DISPLAY — Brightness (Typ.) [cd/m²] Sources | 275cd/m² | 275cd/m² |
FEATURES — HDR 10 Sources | YES | YES |
FEATURES — VESA DisplayHDR™ Sources | DisplayHDR True Black 400 | DisplayHDR True Black 400 |
FEATURES — Color Calibrated in Factory Sources | YES | YES |
FEATURES — HW Calibration Sources | HW Calibration Ready | HW Calibration Ready |
FEATURES — Color Weakness Sources | YES | YES |
FEATURES — Black Stabiliser Sources | YES | YES |
SW APPLICATION — LG Calibration Studio (True Color Pro) Sources | YES | YES |
Manufacturer maximum refresh rate SourcesLG 34GX900A-B Manufacturer specification · Manufacturer display-table maximum, not a motion index. Input-specific modes/overclocking remain in original source fields. Original: 240 LG 34GX900A-B — official UK product specificationsLG 39GX900A-B Manufacturer specification · Manufacturer display-table maximum, not a motion index. Input-specific modes/overclocking remain in original source fields. Original: 240 LG 39GX900A-B — official UK product specifications | 240 Hz | 240 Hz |
DISPLAY — Response Time Sources | 0.03ms (GTG) | 0.03ms (GTG) |
FEATURES — NVIDIA G-Sync™ Sources | G-SYNC Compatible | G-SYNC Compatible |
FEATURES — AMD FreeSync™ Sources | FreeSync Premium Pro | FreeSync Premium Pro |
FEATURES — VRR Sources | YES | YES |
FEATURES — Dynamic Action Sync Sources | YES | YES |
Inputs and connections Sources | hdmi: YES(2ea); displayport: YES(1ea); dp version: 1.4 (DSC); usb-c: YES(1ea); usb-c (power delivery): 65W; usb downstream port: YES(2ea/ver3.0); headphone output: 4-Pole(Sound+Mic) | hdmi: YES(2ea); displayport: YES(1ea); dp version: 1.4 (DSC); usb-c: YES(1ea); usb-c (power delivery): 65W; usb downstream port: YES(2ea/ver3.0); headphone output: 4-Pole(Sound+Mic) |
FEATURES — Auto Input Switch Sources | YES | YES |
FEATURES — PBP Sources | 2PBP | 2PBP |
FEATURES — PIP Sources | YES | YES |
SOUND — Speaker Sources | 7W x 2 | 7W x 2 |
Manufacturer dimensions and stand basisDifferent SourcesLG 34GX900A-B Manufacturer specification · Original manufacturer axes, units and up/down/stand configurations retained. LG 34GX900A-B — official UK product specificationsLG 39GX900A-B Manufacturer specification · Original manufacturer axes, units and up/down/stand configurations retained. LG 39GX900A-B — official UK product specifications | dimension with stand (w x h x d) [mm]: 784.1x580.4x291.8mm(UP)/ 784.1x470.4x291.8mm(Down) | dimension with stand (w x h x d) [mm]: 887.8 x 605.7 x 322.8mm (UP) / 887.8 x 495.7 x 322.8mm (Down) |
MECHANICAL — Display Position Adjustments Sources | Tilt/Height/Swivel | Tilt/Height/Swivel |
MECHANICAL — Wall Mountable [mm] Sources | 100 x 100mm | 100 x 100mm |
DIMENSIONS/WEIGHTS — Dimension without Stand (W x H x D) [mm]Different Sources | 784.1x358.3x167.1mm | 887.8 x 404.4 x 198.0mm |
DIMENSIONS/WEIGHTS — Dimension in Shiping (W x H x D) [mm]Different Sources | 927 x 295 x 550mm | 985 x 338 x 550mm |
DIMENSIONS/WEIGHTS — Weight with Stand [kg]Different Sources | 10.4kg | 11.45kg |
DIMENSIONS/WEIGHTS — Weight without Stand [kg]Different Sources | 6.2kg | 7.3kg |
DIMENSIONS/WEIGHTS — Weight in Shipping [kg]Different Sources | 15.1kg | 17.5kg |
FEATURES — Smart Energy Saving SourcesLG 39GX900A-B No source recorded. | YES | Not provided |
POWER — Type Sources | External Power(Adapter) | External Power(Adapter) |
POWER — AC Input Sources | 100~240V (50/60Hz) | 100~240V (50/60Hz) |
POWER — Power Consumption (Sleep Mode) Sources | Less than 0.5W | Less than 0.5W |
POWER — Power Consumption (DC Off) Sources | Less than 0.3W | Less than 0.3W |
FEATURES — Reader Mode Sources | YES | YES |
FEATURES — Crosshair Sources | YES | YES |
FEATURES — FPS Counter Sources | YES | YES |
FEATURES — User Defined Key Sources | YES | YES |
SW APPLICATION — Dual Controller Sources | YES | YES |
INFO — Product name Sources | UltraGear | UltraGear |
INFO — Year Sources | Y25 | Y25 |
ACCESSORY — HDMI Sources | YES (ver 2.1) | YES (ver 2.1) |
ACCESSORY — USB-C Sources | YES | YES |
ACCESSORY — Display Port Sources | YES | YES |
Closest monitors to this pair by shared key specifications. Not a popularity ranking.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
