UltraGear 39GX90SA

General

Series

UltraGear OLED1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W product title and gaming category.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

39GX90SA-W1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W sold model number. Other regions are not represented as variants.

GTIN / EAN

1951741153291Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Warranty UPC. European GTINs are not assigned to the U.S. reference.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

Status

Not available

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$1,5992Press releaselg.com/us/press-release/lg-ug-smart-monitor-pr-4-02-2025.pdfRead 5 October 2026Page 1 explicitly names this model and initial U.S. retail price. The publisher states a whole-dollar amount. Later .99 MSRP and sale prices are not substituted.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

ColoursiThe maker's own colour names

Not available

SegmentiFrom the maker's own product category. Office also covers home and everyday monitors.

Gaming1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W gaming monitor category.

Display

Screen sizeiDiagonal in inches exactly as the maker advertises it. A class size and the viewable diagonal can differ.

39in(99.1 cm)1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Screen Size: 39 inches.

Viewable screen diagonaliDiagonal of the visible image area. This can be smaller than the advertised class size.

Not available

Native resolution

3440 × 1440px1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Native Resolution. This smart model is WQHD, not the 5K2K GX950A.

Aspect ratio

21:91Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W maker nominal 21:9 class. The exact 3440:1440 pixel fraction differs from the nominal class.

Pixel density

95.6ppi=CalculatedFrom Screen size and Native resolution

Pixel pitchiDistance between adjacent pixels. Source notes identify horizontal or vertical pitch if they differ. A horizontal figure about a third of the vertical one is the pitch of one subpixel, not of a pixel, so the pixel figure is stored.

0.266mm4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact maker table 0.266 x 0.266 mm, independently matching the French LG sheet. U.S. 0.303 mm is copied from the larger 45-inch panel and is inconsistent with the exact 39-inch diagonal.

Active display areaiMaker published active-display width and height, excluding the external frame. Source notes distinguish image area from any published shift-reserve area. Dimensions are not inferred from native resolution or rounded pixel pitch.

Not available

Curved

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Curved Screen Yes.

Curvature radiusiRadius of screen curvature. A published 1800R is 1800 mm.

800mm1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Curvature 800R. Fixed curvature, not a bendable panel.

Screen surface

Not available

Anti-reflection coating

Anti-Glare, Low-Reflection of the front polarizer1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Surface Treatment. This alone does not establish a matte or glossy classification.

Touchscreen

Not available

Panel

Panel type

WOLED6Reviewpcworld.com/article/2816556/lg-ultragear-39gx90sa-w-review.htmlRead 5 October 2026Exact-model specification and SDR image-quality sections explicitly identify WOLED. No other size measurement is inherited.

Panel type (as published)iPanel or technology name as published. This is separate from the normalised panel type.

WOLED6Reviewpcworld.com/article/2816556/lg-ultragear-39gx90sa-w-review.htmlRead 5 October 2026Exact panel technology name.

BacklightiLayout of the backlight. OLED is none (self-emissive). WLED or LED alone names no layout, so it is left out unless a source states edge-lit or direct-lit.

Not available

Local dimming

Not available

Dimming zones

Not available

Panel maker

Not available

Panel part number

Not available

Panel generationiGeneration or panel architecture name stated by the source. Brand product generation and panel generation can differ.

Not available

Subpixel layoutiArrangement of the red, green, blue and any white emitters within a pixel. Individual emitter shapes do not establish their arrangement. Marketing names such as Primary RGB Tandem do not prove an RGB stripe layout.

Not available

Colour depthiSupported total colour depth per channel. A stated 8-bit plus FRC implementation is 10 supported bits with FRC, not native 10-bit. A 6-bit plus FRC panel, also called Hi-FRC, is 8 bits with FRC.

10bits4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact maker table Colour Bit 10bit. Native versus FRC implementation is unstated and omitted.

Colour depth methodiNative panel bits or temporal frame rate control. Supported 10-bit input alone does not prove native 10-bit panel depth.

Not available

Displayable colours

1.07 billion1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo number of colours 1.07B. Native colour depth method is unstated.

sRGB coverageiPercentage of the sRGB reference gamut covered. Gamut volume is a different measure and is not stored here. Source notes identify the colour-space standard.

Not available

DCI-P3 coverageiPercentage of DCI-P3 covered. Do not substitute gamut volume. Source notes identify the CIE reference and any minimum or typical qualifier.

98.5%1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo DCI-P3 98.5% typical, CIE 1976. Not measured coverage or gamut volume.

Adobe RGB coverageiPercentage of Adobe RGB covered. Do not substitute gamut volume.

Not available

Rec. 2020 coverageiPercentage of Rec. 2020 covered. Do not substitute gamut volume.

Not available

NTSC coverageiPercentage of the NTSC reference gamut covered. Source notes identify the reference. Do not substitute gamut volume.

Not available

Factory calibrated

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Factory Calibration Yes. A U.S. paper report is not independently established.

Claimed Delta EiMaker claim for colour error. Source notes retain a less-than qualifier, the colour space and whether the figure is an average or maximum.

Not available

Paper calibration report in boxiA physical calibration report included in the package. An electronic report in the menu or software does not count as a paper report.

Not available

Hardware calibration supportiCalibration writes to the monitor internal hardware LUT. Ordinary colour controls or a computer ICC profile do not establish this feature.

Not available

Static contrast ratioiPanel native static contrast, without dynamic contrast processing or local dimming. 1000 means 1000:1. Do not store a dynamic contrast claim here.

1,500,000:11Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo typical 1.5M:1. The feature explanation uses 25% APL. Infinite reviewer contrast has no finite numeric representation.

Brightness (typical, SDR)iMaker typical SDR white luminance. Source notes state any window size, average picture level and operating mode.

275nits1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo typical SDR 275 cd/m². Measured or minimum brightness is separate.

Brightness (maker minimum)iMaker minimum guaranteed brightness specification under its stated conditions. This is not the lowest user-selectable brightness unless the source explicitly says so.

250nits1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo minimum guaranteed 250 cd/m². This is not the minimum adjustable brightness.

Peak brightness (HDR)iMaker peak HDR white luminance. The source notes state window size or average picture level, mode and time limit where published.

1,300nits1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo HDR peak 1300 cd/m² at 1.5% average picture level. Not a full-screen or sustained measurement.

HDR peak test windowiPercentage of screen area used for the peak HDR claim. If the maker publishes average picture level instead, source notes identify that distinction.

1.5%1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo explicitly uses 1.5% APL, not necessarily a white-window percentage.

Full-screen brightnessiMaker white luminance at 100% screen area or 100% average picture level. Source notes state SDR or HDR and mode.

Not available

HDR formats

HDR101Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo HDR10 Yes. HDR Effect does not establish another accepted HDR format.

HDR certificationiVESA DisplayHDR certification. None needs a source, such as the maker saying the monitor has no DisplayHDR certification or the model being absent from the VESA list. When no source was checked, it is left out.

DisplayHDR True Black 4001Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo DisplayHDR True Black 400. Not the LCD DisplayHDR 400 tier.

Viewing angle (horizontal)

178°1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo viewing angle R/L at CR >= 10.

Viewing angle (vertical)

178°1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo viewing angle U/D at CR >= 10.

Refresh rate and motion

Refresh rate per resolution and portiHighest accepted rate for each proven resolution, input and operating condition. Preset or supported timing lists alone do not prove a maximum. Keep separate bit-depth, chroma and DSC conditions. Dual-mode or crop-mode requirements belong in source notes. Unknown input stays unknown.

Refresh rate per resolution and port. The top rate is in bold.

Resolution	HDMI 2.1	DisplayPort 1.4	USB-C
3440 × 1440Native	240Hz	240HzDSC	240HzDSC

Source2Press releaselg.com/us/press-release/lg-ug-smart-monitor-pr-4-02-2025.pdfRead 5 October 2026Page 2 exact GX9s table lists native 3440 x 1440, maximum 240 Hz and the model names. Footnote 1 expressly requires DisplayPort 1.4 or HDMI 2.1 for up to 240 Hz. Combined text confirms the native maximum for both input families. Manual page 20 requires DP compatibility 1.4 DSC. HDMI requires 2.1 PC mode. Bit depth, chroma and HDMI compression are unstated. Lower-resolution preset rows are not treated as maxima.4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact USB-C Max Resolution at Hz row explicitly states 3440 x 1440 at 240 Hz. Manual page 20 requires compatibility 1.4 DSC. Other port maxima are separately supported by the maker U.S. press sheet, not inferred from preset timing rows.

Show as source table

Width (px)	Height (px)	Input	Input version	Maximum accepted rate (Hz)	DSC
3440	1440	USB-C	Not available	240	Yes
3440	1440	DisplayPort	1.4	240	Yes
3440	1440	HDMI	2.1	240	Not available

Max refresh rateiHighest proven accepted rate across the stored modes, including lower-resolution dual modes.

240Hz=CalculatedFrom Refresh rate per resolution and port

Max refresh rate at native resolutioniHighest proven accepted rate at the native pixel resolution, across all inputs and stored operating conditions.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over DisplayPortiHighest proven accepted rate over DisplayPort at native resolution. A higher lower-resolution dual mode is separate.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over HDMIiHighest proven accepted rate over HDMI at native resolution. Console refresh limits can be lower than PC limits.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over USB-CiHighest proven accepted rate over USB-C or Thunderbolt at native resolution. USB data bandwidth settings can lower the video maximum.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate at 10-bitiHighest stored native-resolution mode explicitly proven at 10-bit colour. Rows without bit-depth evidence do not count.

Not available

Native refresh rateiHighest refresh rate the maker rates without overclock. A lower optimum or recommended mode in a manual is not this value.

240Hz1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo native 240 Hz. No faster dual mode or overclock is inherited.

Overclocked refresh rate

Not available

Dual modeiA dedicated display mode that changes resolution to raise the maximum refresh rate. Ordinary image scaling or a preset timing does not count.

Not available

Minimum fixed refresh rateiLowest fixed input rate accepted by the monitor. A VRR lower limit or general vertical scan range is not this value.

Not available

Adaptive sync technologiesiExact published adaptive-sync protocol or named certification. Generic Adaptive-Sync support does not prove VESA AdaptiveSync Display certification. Source notes distinguish protocols from certifications.

FreeSync Premium, G-SYNC Compatible, VESA AdaptiveSync Display1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo names FreeSync Premium, G-SYNC Compatible and VESA Adaptive Sync. No native G-SYNC module or FreeSync Premium Pro is inferred.

VRR range per portiVariable-refresh-rate operating range for each input and the operating mode named in source notes. A fixed timing or general vertical scan range alone is not a VRR range.

Not available

Low framerate compensation

Yes9Maker product pageamd.com/en/products/graphics/technologies/freesync.htmlRead 5 October 2026AMD officially requires LFC for FreeSync Premium-certified displays. The exact U.S. monitor has that named certification. No port-specific VRR interval is inferred.

Response time (maker GtG claim)iMaker grey-to-grey pixel transition claim. Source notes state fastest overdrive or other conditions where published.

0.03ms1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo 0.03 ms GtG at Faster. Not a mean measured transition time.

Response time (maker MPRT claim)iMaker moving-picture response-time claim, often with strobing enabled. This is not a grey-to-grey transition time.

Not available

Overdrive settings

Not available

Motion blur reductioniA dedicated blur-reduction feature using backlight strobing or black frame insertion. OLED monitors have no backlight.

Not available

Blur-reduction technologyiPublished name of the backlight strobing or black frame insertion feature.

Not available

Blur reduction works with VRRiWhether the dedicated strobing or black frame insertion mode can operate at the same time as variable refresh rate.

Not available

Flicker-free (claimed)

Not available

Black frame insertion

Not available

Measured

Input lag at maximum refresh rateiReviewer total display lag at the monitor highest accepted refresh rate, including a faster dual mode. Native-rate measurements below that maximum and processing-only delay are excluded. Source notes name the rate, resolution and test method.

Not available

Input lag at 60 HziReviewer total display lag with a fixed 60 Hz input. Processing-only delay is excluded. Source notes name the resolution, mode and test method.

Not available

Average response time (measured)iReviewer mean grey-to-grey transition time across tested transitions. Source notes state the measurement endpoint, method, refresh rate and overdrive. A single worst transition or an unaveraged settling time does not count.

Not available

Overshoot (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Contrast ratio (measured)i1000 means 1000:1. Measured by a reviewer

Not available

SDR brightness (measured)iReviewer measured SDR white luminance. Source notes state picture mode, window size and brightness setting where available.

246nits6Reviewpcworld.com/article/2816556/lg-ultragear-39gx90sa-w-review.htmlRead 5 October 2026SDR image-quality section reports approximately 246 nits sustained white luminance. Picture preset, window size, connection and firmware for this specific brightness result are not identified. The number retains the approximate qualifier. HDR 783.5 nits is not a real-scene result and is omitted.

HDR brightness in a real scene (measured)iMeasured by a reviewer, not claimed by the maker

Not available

PWM flicker frequency (measured)iOnly when the reviewer found PWM flicker

Not available

VRR range (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Colour accuracy (measured Delta E)iReviewer average colour error before calibration. Source notes name picture mode, reference colour space and Delta E method. Post-calibration results are excluded.

Not available

Gray uniformity (measured)iDeviation on a 50 % gray screen. Measured by a reviewer

Not available

Reflections (measured)iTotal reflections. Measured by a reviewer

Not available

Connectivity

Video inputsiPhysical connectors that accept a display signal. A USB-C data-only charging port is not a video input. Counts exclude USB hubs and audio jacks.

Type	Version	Count	DSC	HDCP
HDMI	2.1	2	Not available	Not available
DisplayPort	1.4	1	Yes	2.3
USB-C	Not available	1	Not available	Not available

Source1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact AllInfo counts and input versions. Supplementary producer table explicitly DP 1.4 DSC, and AllInfo DP HDCP 2.3. USB-C is a video input via explicit manual Alt Mode. Link bandwidth, HDMI HDCP/DSC and USB-C link revision are unstated.

HDMI ports

2=CalculatedFrom Video inputs

DisplayPort ports

1=CalculatedFrom Video inputs

Highest HDMI version

2.1=CalculatedFrom Video inputs

Highest DisplayPort version

1.4=CalculatedFrom Video inputs

HDMI features

Not available

USB-C video (DP Alt Mode)

Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 14 explicitly supports PD and DisplayPort Alternate Mode at the upstream USB-C port.

USB-C power deliverediPower the monitor supplies to a connected device. Source notes distinguish guaranteed, maximum and shared dynamic limits. Power consumed by the monitor is separate.

65W1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo USB-C Power Delivery 65 W supplied to a compatible host. The monitor still needs its separate adapter.

Thunderbolt

Not available

USB upstream portsiUSB connections from the monitor hub to host computers. Video input and downstream charging ports are separate.

Connector	Count
USB-C	1

Source1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo one host-facing USB-C connection. Its USB data revision is unstated in the U.S. table.

USB downstream hub portsiUSB hub connections for peripherals. These exclude host-facing upstream ports. A port the maker names for service or firmware updates only is not counted.

Connector	USB version	Count
USB-A	2.0	2

Source1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo two USB 2.0 downstream ports. Their Type-A connector form is confirmed by the matching product and connector inventory.

KVM switch

Not available

Daisy chain (MST)

Not available

Ethernet

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo LAN Yes. Data bandwidth is not inferred.

3.5 mm headphone outputiAnalogue headphone or audio output. A shared four-pole headset jack counts.

Yes4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact table three-pole headphone output, sound only. No microphone contacts.

3.5 mm microphone inputiAnalogue microphone input, including the microphone contacts of a shared four-pole headset jack. This does not imply a separate microphone socket.

Not available

Optical out

Not available

Picture in picture

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo PIP Yes. Not a KVM function.

Picture by picture

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo PBP Yes. The supplementary exact-model table specifies two sources.

Smart features

Smart platform

webOS 241Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo explicitly webOS 24. Present services vary by region and subscription.

Wi-Fi

Wi-Fi 53Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 17 wireless module LGSBWAC23 supports IEEE 802.11a/b/g/n/ac. Wi-Fi 6 in a review is inconsistent with this exact hardware table and is not stored.

Bluetooth

Not available

Remote control

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo accessory Remote Control Yes. The optional Magic Remote for voice recognition is separate.

Audio and camera

Speakers

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo Speaker Yes. Output-channel count does not prove a physical driver count.

Number of speakers

Not available

Speaker power per channeliRated power per speaker or output channel. Do not store the total of all speakers here.

7W4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact table 7 W x 2 output channels. No physical driver count is inferred.

Webcam

Not available

Microphone

Not available

Ergonomics and controls

Stand height adjustmentiVertical travel of the supplied stand. This is not the total height of the monitor.

110mm1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo stand travel. Independently confirmed by manual page 8.

TiltiMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude.

Forward8°Backward15°1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo stand angle and manual page 8. Stored as positive directional magnitudes.

SwiveliMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude.

Left30°Right30°1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo stand angle and manual page 8. Left and right are positive magnitudes.

PivotiMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude. Pivot is rotation in the screen plane. A small slant adjustment for levelling, as Dell calls it, counts.

Not available

Removable stand

Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 11 explicitly removes the supplied stand before wall mounting by reversing its attachment.

VESA mount

100 x 1001Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo mounting size, independently confirmed by manual page 10.

VESA adapter needed

No3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Pages 10-11 show the wall bracket attaching directly to the rear mounting holes. The optional wall bracket is separate.

Security lock slot

Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 9 explains the physical Kensington socket. Its cable is optional.

On-screen menu controlsiControls that operate the monitor menu or display settings. Desktop window-layout software alone does not count as menu control.

Not available

Desktop software

Not available

User firmware updates

Not available

Ambient light sensoriPresence of a physical ambient-light sensor. A regulatory statement that Automatic Brightness Control is unavailable does not prove the sensor is absent. Human presence or proximity sensing is separate.

Not available

Presence sensoriPresence of a person-detection or proximity sensor. Source notes distinguish room presence from near-screen detection. Absence of one kind does not prove absence of every presence sensor.

Not available

RGB lightingiDecorative illumination explicitly described as RGB or documented with selectable red, green and blue colours. A power LED or only one or two fixed colours is insufficient.

Yes1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo explicitly RGB Hexagon Lighting. Not the power indicator.

Gaming menu features

Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo named gaming functions. No AI feature from another generation is imported.

Dimensions and weight

Dimensions with standiOverall monitor dimensions with the supplied stand. Minimum and maximum heights require the stand position to be identified by the source.

Not available

Dimensions without standiOverall monitor body dimensions after the stand is removed, including the frame and rear housing.

Width887.8Height404.4Depth198mm(35 × 15.9 × 7.8 in)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 exact metric body dimensions. W x D x H source axes are correctly mapped. Rounded inch values are not converted back to fabricated precision.

Stand footprintiWidth and depth of the stand base on the desk. A maker's stand width and depth count.

Not available

Weight with standiWeight with the supplied stand. Source notes state if cables are included. Packaging weight is separate.

11.45kg(25.2 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 own model row, without packaging. US imperial rounding differs in places, so the direct metric value takes precedence.

Weight without standiMonitor body weight without stand. Source notes state whether cables are included.

7.3kg(16.1 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 own model row without stand or packaging. The older French 39-inch sheet says 7.80 kg, but its own model manual and current maker say 7.30 kg.

Box dimensionsiShipping box width, height and depth in the maker published orientation. A flat-packed box can have a smaller height than the upright display.

Width985Height338Depth550mm(38.8 × 13.3 × 21.7 in)4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact shipping W x H x D. The French LG sheet independently agrees.

Box weight

17.5kg(38.6 lb)4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact maker shipping weight and French LG sheet agree. This includes packaging.

Power

• EU energy class SDRG7EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 3.
  ABCDEFG
• EU energy class HDRG7EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 5.
  ABCDEFG

Power supplyiUSB-C powered monitors can draw power from a compatible host or an optional USB-C power source. This does not establish a bundled adapter. Record a supplied adapter and its rating separately.

External adapter1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo external adapter.

Adapter ratingiRated output power of the external power adapter. Do not substitute the monitor maximum consumption.

270W3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 adapter AD10660LF rated output is 20 V x 13.5 A, exactly 270 W. This is adapter capacity, not monitor operating consumption.

Input voltage

100-240 V AC, 50/60 Hz1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo mains input, confirmed by manual page 18 adapter input. Not the monitor 20 V DC input.

Power use (typical)iMaker typical operating power under a stated test condition. An unlabeled Power On upper bound does not establish a typical value. EU label test power has separate fields. An ENERGY STAR on-mode (Pon) figure is not a typical value.

Not available

Power use (max)iMaker maximum operating power. Source notes state whether USB charging and connected-device load are included.

Not available

Power use SDR (EU label)iSDR on-mode power demand in the EU product information sheet, in watts. It can differ from rounded energy-label kWh per 1000 hours.

40.3W7EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 4 EU on-mode SDR power, at default 60 Hz. Not maker typical operating consumption.

Power use HDR (EU label)iHDR on-mode power demand in the EU product information sheet, in watts. It can differ from rounded energy-label kWh per 1000 hours.

45.9W7EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 6 EU on-mode HDR power. Not a peak power rating.

Standby poweriPower in standby or DPMS. Source notes retain any less-than qualifier.

0.5W7EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 8 standby demand. Off mode is n.a. and not inferred as zero.

Off-mode poweriPower when switched off but still connected to mains. Source notes retain any less-than qualifier.

Not available

Energy per 1000 h SDR

40kWh8EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact EU label explicitly prints this integer. Not calculated from the decimal fiche wattage.

Energy per 1000 h HDR

46kWh8EU energy label (EPREL)lg.com/es/lgecs.downloadFile.ldwfRead 5 October 2026Exact EU label explicitly prints this HDR integer. Independently read, not inherited from SDR.

In the box

In the box

Monitor, Stand, AC/DC adapter, HDMI cable, DisplayPort cable, USB-C cable, Remote control1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo cables and included remote, with the monitor, stand and external adapter in the manual. Optional Magic Remote, regional paper report and unstated cable lengths are omitted.

Cables includediCables supplied with the product. Count is included only when the source establishes it. Bundles can vary by market.

Not available

Warranty

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

2years1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W AllInfo two-year parts and labor warranty and exact U.S. support. EU one-year regulatory guarantee metadata does not replace U.S. terms. Burn-in-specific coverage is not established.

Dead pixel policy

Not available

Links

Product page

www.lg.com/us/monitors/lg-39gx90sa-w-gaming-monitor1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W product identity. No GX900A or GS95QE hardware is inherited.

Spec sheet

boulanger.scene7.com/is/content/Boulanger/8806096433102_f_05Maker spec sheet (PDF)boulanger.scene7.com/is/content/Boulanger/8806096433102_f_0Read 5 October 2026Original two-page LG France specification sheet, publicly hosted by Boulanger. Exact 39GX90SA-W. Its copied pivot/body-colour claims and 7.80 kg body weight are excluded in favor of own model manual and current maker table.

Manual

gscs-b2c.lge.com/downloadFile3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Exact-model English manual linked by U.S. support. The cover names 34GX90SA and 39GX90SA. The manual date is not product retail availability.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available