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ASUS ROG Swift OLED PG27UCWM vs ASUS ROG Swift OLED PG34WCDN

Product A: ASUS

ROG Swift OLED PG27UCWM

116 of 172 known
Change ASUS ROG Swift OLED PG27UCWM

Compare the ASUS ROG Swift OLED PG34WCDN with

Product B: ASUS

ROG Swift OLED PG34WCDN

117 of 172 known
Change ASUS ROG Swift OLED PG34WCDN

Compare the ASUS ROG Swift OLED PG27UCWM with

53 of 164 fields differ

Download CSVDownload JSON
  • 43 different values
  • 10 known for one only
  • 63 the same
  • 48 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Pixel densityA: 166.3ppiB: 109.7ppiROG Swift OLED PG27UCWM is 56.6 ppi higher.
  2. Refresh rateA: 240HzB: 360HzROG Swift OLED PG34WCDN is 120 Hz higher.
  3. Peak brightness (HDR)A: 1,000nitsB: 1,300nitsROG Swift OLED PG34WCDN is 300 nits higher.
  4. Brightness (typical, SDR)A: 250nitsB: 300nitsROG Swift OLED PG34WCDN is 50 nits higher.
  5. Power use HDR (EU label)Lower is betterA: 27WB: 30WROG Swift OLED PG27UCWM is 3 W lower.

Refresh rate per resolution

The best rate over any port. Bars run from 0 to 1200 Hz.

3840 × 2160Native for A
A240Hz
BNot listed
3440 × 1440Native for B
ANot listed
B360Hz
1920 × 1080
A480Hz
BNot listed

Size, drawn to scale

Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.

Weight

0 to 15 kg

Weight with stand
A8.1kg
B8.3kg
Weight without stand
A5.4kg
B5.5kg
Box weight
A11.8kg
B13.7kg

All 172 fields

Every value links to where we found it.

AASUS ROG Swift OLED PG27UCWM
BASUS ROG Swift OLED PG34WCDN

General

1 of 8 differ
Series
ROG Swift OLED1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Exact model header on the maker's global spec page.
ROG Swift OLED1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Exact model header and product family.
Model numbers
PG27UCWM, 90LM0CY1-B019711Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Header names PG27UCWM. The ordering code 90LM0CY1-B01971 is in the page data of the same product. The ASUS US store sells ordering code 90LM0CY0-B019B1, which is not stored because the maker pages do not show it as a different configuration.
PG34WCDN1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Exact model header. No regional ordering-code variants are introduced.
GTIN / EAN
47116365058579Retailer pagegrosbill.com/asus-rog-swift-pg27ucwm-169893Read 14 October 2026EAN 4711636505857 for manufacturer reference 90LM0CY1-B01971. hinta.fi lists the same EAN and code. No UPC found for the US ordering code.
1992912895507Retailer pagemicrocenter.com/product/709977/rog-swift-oled-pg34wcdn-342-2k-wqhd-(3440-x-1440)-360hz-curved-screen-ultrawide-gaming-monitorRead 5 October 2026Product Information / UPC exact PG34WCDN. No regional variant row inferred.
Announced
4 January 20267Press releaserog.asus.com/ca-en/articles/gaming-monitors/rgb-stripe-pixel-oled-tech-debuts-in-the-rog-swift-pg34wcdn-xg34wcdms-pg27ucwmRead 14 October 2026Maker CES article dated 4 January 2026 introduces the PG27UCWM. It gives no price or date and says the monitors are on their way.
4 January 202614Press releaserog.asus.com/ca-en/articles/gaming-monitors/rgb-stripe-pixel-oled-tech-debuts-in-the-rog-swift-pg34wcdn-xg34wcdms-pg27ucwmRead 5 October 2026Maker article dated January 4 2026 explicitly introduces PG34WCDN. Used only for announcement date. Its grouped-model DP 1.4 and Dolby Vision wording conflicts with exact PG34WCDN specifications and is not stored as a model specification.
Status
Available8Maker product pageeshop.asus.com/us/90lm0cy0-b019b1-rog-swift-oled-pg27ucwm.htmlRead 14 October 2026ASUS US store lists the exact model as in stock and for sale at 1,199 USD (current store price, not a launch MSRP).
Available7Retailer pagemicrocenter.com/product/709977/rog-swift-oled-pg34wcdn-342-2k-wqhd-(3440-x-1440)-360hz-curved-screen-ultrawide-gaming-monitorRead 5 October 2026Exact model currently available in U.S. retailer listing.
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
Not available
Launch price (EU)
€1,249.911Reviewguru3d.com/review/asus-rog-swift-oled-pg27ucwm-240-480-hz-gaming-monitor-reviewRead 14 October 2026Page 1: recommended price 1,249.90 EUR including VAT, written as an approximate European recommended price. Tom's Hardware gives 1,099 USD as a starting price while the ASUS US store sells at 1,199 USD, so no USD price is stored.
Not available
Markets
US, EU8Maker product pageeshop.asus.com/us/90lm0cy0-b019b1-rog-swift-oled-pg27ucwm.htmlRead 14 October 2026US from the ASUS US store, EU from the EPREL registration and European retailers.
US, EU7Retailer pagemicrocenter.com/product/709977/rog-swift-oled-pg34wcdn-342-2k-wqhd-(3440-x-1440)-360hz-curved-screen-ultrawide-gaming-monitorRead 5 October 2026Exact U.S. retailer current stock and Germany actual March purchase source below.
Colours
Black3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Specifications table Chassis Colors Black.
Black7Retailer pagemicrocenter.com/product/709977/rog-swift-oled-pg34wcdn-342-2k-wqhd-(3440-x-1440)-360hz-curved-screen-ultrawide-gaming-monitorRead 5 October 2026Product Information / Color. Manual 3-17 also Black.
Segment
Gaming1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Maker Gaming Monitors category.
Gaming1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Maker Gaming Monitors category.

Display

9 of 12 differ
Screen size
26.5in(67.3 cm)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Panel Size (inch) 26.5. EPREL gives 67.3 cm, which is the same diagonal.
34in(86.4 cm)1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Panel Size, 34-inch advertised class. Viewable diagonal is not inferred.
Viewable screen diagonal
Not available
Not available
Native resolution
3840 × 2160px1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026
3440 × 1440px1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Resolution.
Aspect ratio
16:91Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026
21:91Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Aspect Ratio. The maker PDF incorrectly says 16:9 in its hero and Panel Size row. Page and EPREL independently establish 21:9.
Pixel density
166.3ppi
109.7ppi
Pixel pitch
0.153mm1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Pixel Pitch 0.153 mm as published. The published active area divided by 3840 x 2160 gives about 0.1536 mm, so the maker's figure looks truncated. Stored as published.
Not available
Active display area
Width589.97Height331.7mm(23.2 × 13.1 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Display Viewing Area (HxV) 589.97 x 331.70 mm, listed here as width x height. The manual's pixel format line says 26.5 inch (674.0 mm), which is a smaller diagonal than this area implies, so the area is stored as the maker page states it.
Width800.06Height337.06mm(31.5 × 13.3 in)1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display Viewing Area, HxV, in millimeters. Maker pitch 0.231mm does not exactly agree with this area and native resolution within its stated precision. Its cause is unverified, so pixel pitch is omitted rather than explained as rounding.
Curved
No11Reviewguru3d.com/review/asus-rog-swift-oled-pg27ucwm-240-480-hz-gaming-monitor-reviewRead 14 October 2026Page 3: the display is completely flat. No curvature radius is published.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Curvature explicitly 1800R.
Curvature radius
Not available
1,800mm1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Curvature 1800R.
Screen surface
Glossy1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Display Surface Glossy (TrueBlack Glossy).
Glossy9Reviewstuff.tv/review/asus-rog-swift-pg34wcdn-reviewRead 5 October 2026Image quality section explicitly describes glossy screen. Maker Anti-Reflection name retained separately.
Anti-reflection coating
TrueBlack Glossy2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026TrueBlack Glossy zero-haze optical layer with an anti-reflective stack. Exact maker name stored.
Anti-Reflection (BlackShield Film)1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display Surface, exact maker wording.
Touchscreen
Not available
Not available

Panel

9 of 31 differ
Panel type
WOLED1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Panel Type WOLED.
QD-OLED1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Panel Type.
Panel type (as published)
Tandem RGB OLED1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Panel Technology Tandem RGB OLED.
Tandem RGB QD-OLED1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Panel Technology.
Backlight
None (self-emissive)3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Product is OLED, which is self-emissive. The manual spec table labels the Backlight Type row as RGB stripe, which is a pixel layout and is not stored as a backlight.
None (self-emissive)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Product definition and panel technology OLED. No LCD backlight is implied.
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
LG Display10Press articletftcentral.co.uk/news/asus-unveil-the-rog-swift-pg27ucwm-with-a-27-4k-tandem-woled-panel-and-rgb-stripe-pixel-layoutRead 14 October 2026Names LG Display as the panel maker. The panel model number is not given.
Samsung Display10Measurementtechfi.nl/monitoren/asus-rog-swift-oled-pg34wcdn-reviewRead 5 October 2026Exact model panel discussion and comparison with PG34WCDM distinguishes Samsung QD-OLED from LG WOLED.
Panel part number
Not available
Not available
Panel generation
4th Gen Primary RGB Tandem WOLED10Press articletftcentral.co.uk/news/asus-unveil-the-rog-swift-pg27ucwm-with-a-27-4k-tandem-woled-panel-and-rgb-stripe-pixel-layoutRead 14 October 2026Names a 4th Gen Primary RGB Tandem WOLED panel, which LG Display now calls Tandem WOLED.
Not available
Subpixel layout
RGB stripe2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026States true RGB Stripe sub-pixel arrangement and removal of the white subpixel of standard WOLED.
RGB stripe2Maker product pagerog.asus.com/us/monitors/32-to-34-inches/rog-swift-oled-pg34wcdnRead 5 October 2026RGB Stripe Pixel OLED section explicitly standard RGB stripe arrangement.
Colour depth
10bits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Display Colors 1073.7M (10 bit).
10bits1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display Colors explicitly 10bit. No per-input refresh condition is inferred.
Colour depth method
Native12Reviewtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-reviewRead 14 October 2026Spec table row Native Color Depth and Gamut: 10-bit / DCI-P3. The maker page says 10 bit without the word native.
Native2Maker product pagerog.asus.com/us/monitors/32-to-34-inches/rog-swift-oled-pg34wcdnRead 5 October 2026Exact model key features explicitly true 10-bit color. Not inferred from 1.07 billion alone.
Displayable colours
1.07 billion1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Published as 1073.7M. Normalized to 1.07 billion.
1.07 billion1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display Colors 1073.7M, normalized by the field list convention. Literal maker form preserved here.
sRGB coverage
Not available
Not available
DCI-P3 coverage
99%1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Color Space (DCI-P3) 99%. The manual says 99% (Typ.). The reference chromaticity is not stated. The 130% sRGB figure is gamut volume and is not stored as coverage.
99%1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Color Space DCI-P3. Reference chromaticity standard is not stated. sRGB 135% is gamut size/volume, not coverage, and omitted.
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Yes2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026FAQ says ROG OLED monitors are factory calibrated. Spec page lists a Color Calibration E-report through DisplayWidget Center. Tom's Hardware confirms factory calibration data stored in firmware. No paper report is stated.
Yes4Maker spec sheet (PDF)gzhls.at/blob/ldb/9/0/3/f/14d57485f25628a5fede29b89dc3e5f5efad.pdfRead 5 October 2026p2 Color pre-calibration: Yes. Exact model matches, and current maker page electronic calibration report corroborates.
Claimed Delta E
22Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Feature banner reads 99% DCI-P3 and Delta E under 2. Stored as 2 with the less-than qualifier. Average or maximum is not stated.
21Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Color Accuracy states Delta E less than or equal to 2. Feature-page shorthand says less than 2, so this specific spec bound takes precedence.
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,500,000:11Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Contrast Ratio (Typ.) 1,500,000:1.
1,500,000:11Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Contrast Ratio (Typ.), 1,500,000:1. No dynamic contrast figure is substituted.
Brightness (typical, SDR)
250nits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Brightness (Typ.) 250 cd/m2. The manual spec table adds 450 nits (peak) without a condition, which is not stored.
300nits3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-17, Brightness 300 nits typical.
Brightness (maker minimum)
Not available
Not available
Peak brightness (HDR)
1,000nits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Brightness (HDR, Peak) 1,000 cd/m2. The page note says peak brightness may vary due to color pre-calibration. The test window is not stated on the maker page and is left out.
1,300nits1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Brightness HDR Peak. Maker note says peak can vary due to color pre-calibration. Window percentage is not stated and omitted.
HDR peak test window
Not available
Not available
Full-screen brightness
250nits12Reviewtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-reviewRead 14 October 2026Spec table Brightness (mfr) 250 nits full screen and 1,000 nits at a 3% window. The panel maker figures quoted by TFTCentral are 1,000 nits at 1.5% APL for HDR peak and 250 nits at 100% APL, so the peak window is stated two ways and is not stored.
Not available
HDR formats
HDR10, Dolby Vision1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026HDR Support lists HDR10 and Dolby Vision as two rows. HDR10+ is not listed by the maker.
HDR101Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / HDR Support explicitly HDR10. Dolby Vision is not borrowed from Alienware.
HDR certification
DisplayHDR True Black 4001Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list VESA DisplayHDR 400 True Black.
DisplayHDR True Black 5001Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Certificate list. The feature-page old image alt text says True Black 400, but exact text/spec certification consistently True Black 500.
Viewing angle (horizontal)
178°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Viewing Angle (CR 10 or more) 178 / 178.
178°1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Viewing Angle, CR at least 10, horizontal.
Viewing angle (vertical)
178°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Viewing Angle (CR 10 or more) 178 / 178.
178°1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Viewing Angle, CR at least 10, vertical.

Refresh rate and motion

10 of 22 differ
Refresh rate per resolution and port
AASUS ROG Swift OLED PG27UCWM
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1a UHBR20USB-C
3840 × 2160Native240Hz240Hz240Hz
1920 × 1080480Hz480Hz480Hz
Source2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Feature page: DisplayPort 2.1a UHBR20 with full 80 Gbps supports 4K at 240 Hz without compression. Dual Mode switches between 4K at 240 Hz and FHD at 480 Hz. Maker spec page Signal Frequency gives 48 to 240 Hz vertical for HDMI, USB-C and DisplayPort at native resolution. The manual says Frame Rate Boost enables up to 1920 x 1080 at 480 Hz, and its timing table lists 3840 x 2160 at 240 Hz and 1920 x 1080 at 480 Hz as accepted on HDMI and on DP and USB-C. Bit depth, chroma and DSC for HDMI and USB-C are not stated. The manual's Type-C Bandwidth setting limits USB 3.2 mode to 3840 x 2160 at 120 Hz, so the USB-C maxima need the other bandwidth setting. HDMI 4K at 240 Hz needs a signal beyond uncompressed 48 Gbps, so no DSC value is stored for it.
BASUS ROG Swift OLED PG34WCDN
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1a UHBR20USB-C
3440 × 1440Native360Hz360Hz360Hz
Source2Maker product pagerog.asus.com/us/monitors/32-to-34-inches/rog-swift-oled-pg34wcdnRead 5 October 2026Unlock the Future with DisplayPort 2.1a explicitly supports native WQHD 360 without compression. HDMI 360 is explicitly stated in exact-model Micro Center Refresh Rate Details, corroborated by manual accepted native timings plus claimed 360 maximum. USB-C full 360 is explicitly stated by TechFi Aansluitingen and retailer details. USB-C requires high-resolution bandwidth operation, while manual USB 3.2 data-bandwidth setting caps native 180. Bit depth/chroma and HDMI/USB-C DSC states are not established and omitted. Lower-resolution preset rows and virtual 4K rows are omitted as unproven accepted maxima.11Measurementtechfi.nl/monitoren/asus-rog-swift-oled-pg34wcdn-reviewRead 5 October 2026Aansluitingen explicitly states full 360 Hz framerate over USB-C, but does not know whether its DP stream is 1.4 with DSC or 2.1. Those version/DSC cells remain unknown. Manual Type-C Bandwidth USB 3.2 setting caps 180 Hz, so this 360 maximum uses high-resolution data-bandwidth operation.12Retailer pagemicrocenter.com/product/709977/rog-swift-oled-pg34wcdn-342-2k-wqhd-(3440-x-1440)-360hz-curved-screen-ultrawide-gaming-monitorRead 5 October 2026Display / Maximum Resolution 3440x1440, Native Refresh Rate 360 Hz, Refresh Rate Details explicitly 360 using DisplayPort, 360 using HDMI, 360 using USB-C. Not lower-resolution preset inference. Native HDMI maximum independently matches manual timings and maker 360 maximum.13Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026System Setup 3-15 Type-C Bandwidth explicitly USB 3.2 mode up to 3440x1440@180 Hz. Higher 360 USB-C maximum needs other high-resolution bandwidth mode. Separate 180 row is not introduced because operating mode has no separate column and duplicate unqualified maxima could mislead. Native Timing 3-21 only corroborates direct maker/review/retail maximum claims.
Max refresh rate
480Hz
360Hz
Max refresh rate at native resolution
240Hz
360Hz
Max refresh rate over DisplayPort
240Hz
360Hz
Max refresh rate over HDMI
240Hz
360Hz
Max refresh rate over USB-C
240Hz
360Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Refresh Rate (max) 240 Hz at the native 3840 x 2160. The 480 Hz mode is the Full HD dual mode.
360Hz1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Refresh Rate (max) at the stated native resolution. No overclock mode is asserted.
Overclocked refresh rate
Not available
Not available
Dual mode
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Dual Mode Yes, 4K at 240 Hz or FHD at 480 Hz.
No10Measurementtechfi.nl/monitoren/asus-rog-swift-oled-pg34wcdn-reviewRead 5 October 2026Eén letter anders section explicitly not dual-mode. 180 Hz ELMB and aspect crops are separate functions.
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, VESA AdaptiveSync Display, FreeSync Premium Pro, G-SYNC Compatible1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026VRR Technology Yes (Adaptive-Sync). Certificate list names AMD FreeSync Premium Pro, G-SYNC Compatible and VESA AdaptiveSync Display. The ASUS US store page lists G-SYNC Compatible and VESA AdaptiveSync Display 480Hz but not FreeSync Premium Pro.
Adaptive-Sync, VESA AdaptiveSync Display, FreeSync Premium Pro, G-SYNC Compatible1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Features generic Adaptive-Sync plus exact Certificate names. VESA certification is independently explicit.
VRR range per port
AASUS ROG Swift OLED PG27UCWM
Min (Hz)Max (Hz)
48240
48480
Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Gaming menu, Variable Refresh Rate: can only be activated within 48 to 240 Hz when Frame Rate Boost is off and 48 to 480 Hz when Frame Rate Boost is on. The manual does not split the range by port, so no input is stored. First row is Frame Rate Boost off, second row is on.
BASUS ROG Swift OLED PG34WCDN
InputMin (Hz)Max (Hz)
HDMI48360
DisplayPort48360
Source3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Gaming 3-2 explicitly says Variable Refresh Rate can only activate 48 to 360 Hz for HDMI and DisplayPort. USB-C range is not extrapolated.
Low framerate compensation
Yes15Maker product pageamd.com/en/resources/support-articles/faqs/DH3-013.htmlRead 14 October 2026AMD defines FreeSync Premium Pro as supporting low framerate compensation. The maker lists AMD FreeSync Premium Pro for this model. A compatible GPU and enabled mode are required.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Exact-model Certificate list explicitly FreeSync Premium Pro. AMD tier definition requires LFC. Compatible GPU and enabled supported FreeSync mode required. No per-input range is inferred.15Maker product pageamd.com/en/resources/support-articles/faqs/DH3-013.htmlRead 5 October 2026Overview defines FreeSync Premium Pro with support for low framerate compensation. Exact model maker page supplies the qualifying tier. Compatible GPU and supported enabled mode required.
Response time (maker GtG claim)
0.03ms1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Response Time 0.03 ms (GTG). The announcement calls it a minimum GTG response time.
0.03ms1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Response Time explicitly GTG. Maker minimum claim is distinct from reviewer averages.
Response time (maker MPRT claim)
Not available
Not available
Overdrive settings
Not available
Not available
Motion blur reduction
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Extreme Low Motion Blur Yes.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Features / Extreme Low Motion Blur: Yes.
Blur-reduction technology
Extreme Low Motion Blur (ELMB)3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Gaming menu ELMB Setup. The spec page names it Extreme Low Motion Blur.
Extreme Low Motion Blur (ELMB)1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Features exact maker name and manual ELMB controls.
Blur reduction works with VRR
No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026ELMB can only be activated when Variable Refresh Rate is off, and enabling ELMB turns VRR off. ELMB is available at 120 Hz, or at 120 and 240 Hz in Frame Rate Boost mode.
No3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Gaming 3-2 explicitly requires Variable Refresh Rate disabled for ELMB. ELMB only 120 Hz and 180 Hz, with HDR disabled.
Flicker-free (claimed)
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Flicker free Yes. TUV Flicker-free is on the certificate list.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Display / Flicker free: Yes. This is the maker claim, not a denial of VRR luminance flicker.
Black frame insertion
Not available
Yes3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Gaming 3-2 ELMB description, corroborated by Tom’s Hardware explicitly identifying ELMB as black-frame insertion. Not counted as simultaneous VRR.16Reviewtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg34wcdn-34-inch-qd-oled-360-hz-gaming-monitor-reviewRead 5 October 2026Feature discussion explicitly identifies ELMB as black-frame insertion on the exact PG34WCDN. Manual independently supplies 120Hz/180Hz availability and requires VRR disabled.

Measured

3 of 12 differ
Input lag at maximum refresh rate
Not available
1.695ms10Measurementtechfi.nl/monitoren/asus-rog-swift-oled-pg34wcdn-reviewRead 5 October 2026Testresultaten / OSRTT & OSLTT, mean on-display lag at native 360 Hz 1.695ms, not best 0.014ms. Supplied DP 2.1 cable used, exact model. Firmware version not identified. This is display lag, not NVIDIA LDAT full PC mouse-click latency.
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
Not available
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
278nits13Measurementtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-review/3Read 14 October 2026Page 3: Racing mode, Power Setting on Performance, brightness slider at maximum, Uniform Brightness on. Full field 278 nits, and the 25% window also read 278 nits. With Uniform Brightness off a 25% window reached just under 500 nits. Guru3D measured lower SDR maxima (229.6 nits at 100% in sRGB Calibration mode) with default settings. The ASUS manual says the default Power Saving mode limits brightness.
519nits10Measurementtechfi.nl/monitoren/asus-rog-swift-oled-pg34wcdn-reviewRead 5 October 2026Calman Ultimate Testresultaten / white brightness, 10% APL, Uniform Brightness off, maximum 519 nits. Not full-screen or uniform SDR brightness. Firmware not identified. Different window/mode explains difference from maker 300 typical.
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
1.0514Measurementtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-review/4Read 14 October 2026Page 4: Racing picture mode, uncalibrated, Calman gamut test, 1.05 dE average color gamut error. The Delta E formula is not stated on the page. Guru3D measured an average 2.37 in Racing mode with a DataColor Spyder, a different instrument and patch set, so the two are not the same test.
1.710Measurementtechfi.nl/monitoren/asus-rog-swift-oled-pg34wcdn-reviewRead 5 October 2026Calman Ultimate Testresultaten, factory Racing preset Wide Gamut against P3, before user calibration, ColorChecker SG mean Delta E 2000 1.7. Grayscale mean 0.7 and Delta E ITP 6.1 are different metrics and not substituted. Firmware version not identified.
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

1 of 19 differ
Video inputs
AASUS ROG Swift OLED PG27UCWM
TypeVersionCountMax bandwidth (Gbps)
DisplayPort2.1a UHBR20180
HDMI2.1248
USB-CNot available1Not available
Source2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Rich Connectivity: DisplayPort 2.1a UHBR20 with full 80 Gbps, HDMI 2.1 FRL 48 Gbps. Counts from the manual I/O line: HDMI v2.1 x2, DisplayPort v2.1 x1, USB Type-C x1. DSC and HDCP are not stored.
BASUS ROG Swift OLED PG34WCDN
TypeVersionCountMax bandwidth (Gbps)
DisplayPort2.1a UHBR20180
HDMI2.1248
USB-CNot available1Not available
Source2Maker product pagerog.asus.com/us/monitors/32-to-34-inches/rog-swift-oled-pg34wcdnRead 5 October 2026Rich Connectivity explicitly DP 2.1a UHBR20 80 Gbps and HDMI 2.1 full 48 Gbps. Counts and DSC capability come from the manual. USB-C DisplayPort stream version and compression capability are not established and omitted.13Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-17 and Back View 1-4/1-5 prove exact port counts. System Setup 3-16 DSC Support switch is not port-specific, so video input DSC capability cells are omitted. Native DisplayPort 360 without compression is separately explicit in the maker feature page.
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.1
2.1
Highest DisplayPort version
2.1a UHBR20
2.1a UHBR20
HDMI features
Not available
CEC3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026System Setup 3-16 ASUS Power Sync explicitly CEC source-device power control. HDMI VRR/ALLM are not assumed from port version.
USB-C video (DP Alt Mode)
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026I/O Ports USB-C x 1 (DP Alt Mode).
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026I/O Ports, USB-C video DP Alt Mode.
USB-C power delivered
90W1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026USB-C Power Delivery 90 W.
90W1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026I/O Ports, USB-C PD 90 W. Manual 1-5 publishes 20V/4.5A as the highest profile, independently matching 90 W delivered to a laptop.
Thunderbolt
Not available
Not available
USB upstream ports
AASUS ROG Swift OLED PG27UCWM
ConnectorUSB versionCount
USB-B3.2 Gen 11
USB-CNot available1
Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Back view and I/O line: USB Type-B x1, USB 3.2 Gen 1 upstream. The Type-C port also carries USB data to a host (Type-C Bandwidth setting offers USB 2.0 or USB 3.2, and Smart KVM selects it). No USB revision is stated for the Type-C connection.
BASUS ROG Swift OLED PG34WCDN
ConnectorUSB versionCount
USB-B3.2 Gen 11
USB-CNot available1
Source3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Back View 1-4 and Specifications 3-17 explicitly USB 3.2 Gen 1 Type-B upstream. USB-C carries video/PD/data and KVM 3-15 supplies its host role, but no USB revision is stated for Type-C.
USB downstream hub ports
AASUS ROG Swift OLED PG27UCWM
ConnectorUSB versionCount
USB-A3.2 Gen 13
Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026I/O line USB Type-A (5V / 0.9A) x3. Back view lists them as USB 3.2 Gen 1 downstream ports.
BASUS ROG Swift OLED PG34WCDN
ConnectorUSB versionCount
USB-A3.2 Gen 13
Source3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Back View 1-4 and Specifications 3-17 explicit 3 Type-A downstream, USB 3.2 Gen 1.
KVM switch
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026KVM Switch Yes.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Features / KVM Switch: Yes. Manual 3-13 through 3-15 documents both USB host paths.
Daisy chain (MST)
Not available
Not available
Ethernet
No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The complete I/O line has no Ethernet port.
No3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Complete physical connector inventory Back View 1-4/1-5 and Specifications 3-17 contains no Ethernet.
3.5 mm headphone output
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Earphone jack Yes. Tom's Hardware names it as a 3.5 mm jack.
Yes3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Back View 1-5 earphone jack, exact 3.5mm connector independently specified by Tom’s Hardware I/O paragraph.
3.5 mm microphone input
No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The complete back view and I/O line list only an earphone jack for audio. No microphone input.
No3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Complete Back View 1-4/1-5 and Specifications 3-17 has earphone output, no mic input.
Optical out
No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The complete I/O line has no optical or S/PDIF output.
No3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-17 explicitly SPDIF out: No.
Picture in picture
Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026OSD PIP/PBP menu has PIP Size (Small, Middle, Large). PIP/PBP turns off VRR, ELMB, Aspect Control and DSC.
Yes3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026PIP/PBP 3-10. HDR/VRR/ELMB/DSC disabled when enabled.
Picture by picture
Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026OSD PIP/PBP Mode selects the split screen type, and Smart KVM enables PBP automatically.
Yes3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026PIP/PBP 3-10. HDR/VRR/ELMB/DSC disabled when enabled.

Smart features

None of 4 known
Smart platform
Not available
Not available
Wi-Fi
Not available
Not available
Bluetooth
Not available
Not available
Remote control
Not available
Not available

Audio and camera

0 of 5 differ
Speakers
No1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Speaker No.
No3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-17 Speaker built-in: No.
Number of speakers
Not available
Not available
Speaker power per channel
Not available
Not available
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

3 of 15 differ
Stand height adjustment
110mm1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Height Adjustment 0 to 110 mm.
110mm1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Mechanical Design / 0 to 110 mm. Manual confirms.
Tilt
Forward5°Backward20°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Tilt +20 to -5 degrees, stored as 20 backward and 5 forward. The manual gives -5 to 20.
Forward3.5°Backward18.5°3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-17 and Outline 3-19 both state -3.5 to 18.5 degrees. Current webpage and sheet claim -3 to 20. The exact manual engineering values take precedence.
Swivel
Left30°Right30°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Swivel +30 to -30 degrees.
Left30°Right30°1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Mechanical Design +/-30 degrees. Manual confirms.
Pivot
Counterclockwise90°Clockwise90°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Pivot +90 to -90 degrees.
Not available
Removable stand
Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Chapter 1.4 Detaching the arm/stand: push the locking clips and slide the stand out.
Yes3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Detaching the Stand for VESA wall mount 2-3 gives removal procedure.
VESA mount
100 x 1001Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026VESA Wall Mounting 100x100 mm.
100 x 1001Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Mechanical Design.
VESA adapter needed
Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The package list names a Wall Mount Kit. Tom's Hardware describes a bracket that snaps onto the panel to make the 100 mm VESA mount and Guru3D lists a 100 x 100 mm VESA adapter in the box. The manual text at 1.4 says the VESA wall mount kit is purchased separately, which conflicts with its own package list. Stored as required, since the kit is needed and listed in the box.
Yes3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Detaching Stand 2-3 explicitly requires fitting the supplied Wall Mount Kit to the panel before attaching VESA arm. Kit is not optional.
Security lock slot
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Kensington Lock Yes.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Mechanical Design: Yes.
On-screen menu controls
Joystick, Buttons, Software3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Front view and controls: five-way control button, close button and power button. ASUS DisplayWidget Center adjusts monitor settings from the desktop. Tom's Hardware calls the control a joystick.
Joystick, Buttons, Software3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Front View 1-2/1-3 identifies control joystick, close and power buttons. ASUS DisplayWidget Center referenced throughout OSD.
Desktop software
ASUS DisplayWidget Center1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026DisplayWidget Yes, DisplayWidget Center.
ASUS DisplayWidget Center1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Features / DisplayWidget.
User firmware updates
Yes2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026DisplayWidget Center offers firmware update notifications and a direct update option.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Feature page explicitly describes automatic firmware updates through DisplayWidget Center.
Ambient light sensor
Not available
Not available
Presence sensor
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Proximity Sensor, Neo Proximity Sensor. It detects the user's distance and blanks the screen when the user leaves. It is not an ambient light sensor.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Mechanical Design proximity sensor and feature-page Neo Proximity presence detection. EPREL Room Presence No is a distinct regulatory function and not used to negate this sensor.
RGB lighting
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Lighting effect (Aura) Aura Sync. The manual has Aura RGB with selectable colours.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Mechanical Design Aura Sync plus manual Lighting Effect Aura RGB on rear/base.
Gaming menu features
Frame Rate Boost, Variable Refresh Rate, ELMB, GamePlus, FPS Counter, Crosshair, Dynamic Crosshair, Sniper, Timer, Stopwatch, Display Alignment, GameVisual, Shadow Boost, Dynamic Shadow Boost, Aspect Control, AI Visual, Uniform Brightness, OLED Anti-Flicker2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Names from the feature page and manual: Frame Rate Boost, GamePlus tools, GameVisual, Shadow Boost, AI Assistant (AI Visual, Dynamic Crosshair, Dynamic Shadow Boost), Aspect Control, Uniform Brightness and OLED Anti-Flicker.
Variable Refresh Rate, ELMB, GamePlus, AI Crosshair, AI Visual, Dynamic Shadow Boost, Sniper, FPS Counter, Crosshair, Timer, Stopwatch, Display Alignment, GameVisual, Shadow Boost3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026GamePlus 1-5 through 1-7 and Gaming 3-2/3-3. Verbatim function names, not preset marketing descriptions.

OLED care

1 of 3 differ
OLED care
Neo Proximity Sensor, Pixel Cleaning, Screen Move, Screen Saver, Auto Logo Brightness, Taskbar Detection, Outer Dimming Control, Global Dimming Control, Target Mode, Boundary Detection2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026OLED Care Pro section names Neo Proximity Sensor, Pixel Cleaning, Screen Move, Screen Saver, Logo brightness adjustment, Taskbar detection, Outer dimming control, Global dimming control, Target mode and Boundary Detection.
Screen Saver, Pixel Cleaning, Screen Move, Auto Logo Brightness, Neo Proximity Sensor, Taskbar Detection, Outer Dimming Control, Global Dimming Control, Target Mode2Maker product pagerog.asus.com/us/monitors/32-to-34-inches/rog-swift-oled-pg34wcdnRead 5 October 2026ASUS OLED Care Pro page names each feature. Manual November 2025 lists an earlier subset. Taskbar/Outer/Global/Target controls are current maker claims, without an invented firmware revision cutoff.
Burn-in covered by warranty
Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Warranty explicitly includes panel burn-in.
Yes1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Exact model Warranty explicitly includes panel burn-in.
Burn-in warranty length
3years1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Warranty 3 years including panel burn-in.
3years1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Exact model Warranty explicitly 3 years including panel burn-in.

Dimensions and weight

7 of 7 differ
Dimensions with stand
Width606Height (lowest)438Height (highest)548Depth256mm(23.9 × 17.2 to 21.6 × 10.1 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Spec page gives 60.6 x 54.8 x 25.6 cm. The manual gives 606 x 548 x 256 mm (highest) and 606 x 438 x 256 mm (lowest), so the manual is used for the height range. Maker marks all dimensions and weights as estimates that vary by region.
Width812.8Height (highest)562.7Depth276.13mm(32 × 22.2 × 10.9 in)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-18 explicitly with stand, highest 812.8x562.7x276.13mm. Minimum height not inferred by subtracting travel. Outline 3-19 front drawing 529.7 labels a different front-height axis, not a stated minimum.
Dimensions without stand
Width606Height369Depth63mm(23.9 × 14.5 × 2.5 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Spec page 60.6 x 36.9 x 6.3 cm. The manual gives 606 x 369 x 63 mm.
Width812.8Height373.3Depth107.9mm(32 × 14.7 × 4.2 in)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-18 explicit without stand dimensions. Outline 3-19 front view height 356.5 appears different from full assembly height. Its measurement scope is not merged into this object.
Stand footprint
Not available
Width610.85Depth239.54mm(24 × 9.4 in)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Outline 3-19 rear/side stand-base dimension arrows, visually read. 276.13mm is the full monitor-with stand depth and not substituted for base footprint.
Weight with stand
8.1kg(17.9 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Net Weight with Stand 8.1 kg (estimate, varies by region).
8.3kg(18.3 lb)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-18 with stand 8.3 kg, tolerance plus/minus 0.5 kg.
Weight without stand
5.4kg(11.9 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Net Weight without Stand 5.4 kg (estimate, varies by region).
5.5kg(12.1 lb)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-18 without stand 5.5 kg, tolerance plus/minus 0.5 kg. Current page estimate 5.6 kg lies within tolerance. Manual nominal value retained.
Box dimensions
Width860Height490Depth163mm(33.9 × 19.3 × 6.4 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Box Dimension (W x H x D) 86.0 x 49.00 x 16.3 cm. The manual gives 860 x 490 x 163 mm.
Width980Height500Depth200mm(38.6 × 19.7 × 7.9 in)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-18 explicitly Package Dimensions WxHxD 980x500x200mm. Page/sheet swaps height/depth as 98x20x50cm. Manual orientation takes precedence.
Box weight
11.8kg(26 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Gross Weight 11.8 kg (estimate, varies by region).
13.7kg(30.2 lb)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-18 gross 13.7 kg, tolerance plus/minus 0.5 kg.

Power

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Power supply
Internal4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 24 power supply type Internal.
Internal5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 24.
Adapter rating
Not available
Not available
Input voltage
100-240 V AC, 50/60 Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Voltage 100-240 V, 50/60 Hz.
100-240 V AC, 50/60 Hz3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Specifications 3-17 Voltage rating.
Power use (typical)
Not available
Not available
Power use (max)
Not available
Not available
Power use SDR (EU label)
25.3W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 4 on mode power demand in SDR 25.3 W.
28W5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 4 SDR On Mode.
Power use HDR (EU label)
27W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 6 on mode power demand in HDR 27.0 W.
30W5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 6 HDR On Mode.
Standby power
0.5W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 8 standby 0.5 W. The manual says less than 0.5 W.
0.5W5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 8 exact standby declaration. Manual says less than 0.5 W, not exact equality.
Off-mode power
0.3W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 7 off mode 0.3 W. The manual says less than 0.3 W.
0.3W5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 7 exact off-mode declaration. Manual says less than 0.3 W, not exact equality.
EU energy class SDR
F4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 3 class F.
F5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 3.
EU energy class HDR
G4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 5 class G.
F5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2521723_EN.pdfRead 5 October 2026p1 row 5.
Energy per 1000 h SDR
25kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2688398.pdfRead 14 October 2026Printed label 25 kWh/1000h.
28kWh6EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2521723.pdfRead 5 October 2026Printed label 28 kWh/1000h SDR.
Energy per 1000 h HDR
27kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2688398.pdfRead 14 October 2026Printed label 27 kWh/1000h.
30kWh6EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2521723.pdfRead 5 October 2026Printed label 30 kWh/1000h HDR.

Certifications

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VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
480Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list names both VESA AdaptiveSync Display 240Hz and VESA AdaptiveSync Display 480Hz. The higher number is stored.
360Hz1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Certificate list explicitly VESA AdaptiveSync Display 360 Hz.
TÜV certifications
Flicker-free1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list TUV Flicker-free.
Flicker-free, Low Blue Light (Hardware Solution)1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Certificate list exact TÜV names.
Low blue light
Software3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026OSD Blue Light Filter (Level 1 to 4) is a selectable software filter. The maker lists no hardware low-blue-light certificate.
Hardware1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Certificate list explicitly Hardware Solution. Manual software Blue Light Filter is a separate optional menu function.
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
Not available
Other certifications
FSC MIX1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list FSC MIX.
FSC MIX1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Certificate list. No ENERGY STAR or TCO claim is inferred.

In the box

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In the box
OLED Monitor, Quick Start Guide, Warranty Card, Power Cord, ROG Pouch, ROG Sticker, Monitor Base, Wall Mount Kit, Microfiber Cloth, USB Type-C cable (optional), HDMI cable (optional), DP cable (optional), USB cable (optional), Feature label (optional)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Accessories list on the spec page differs by region and names a DisplayPort 2.1 (DP80) cable, HDMI Ultra High Speed Cable, USB 3.2 cable, USB-C cable and a VESA mount kit. The manual package list is stored verbatim.
OLED Monitor, Quick Start Guide, Warranty Card, Power Cord, ROG Pouch, ROG Sticker, Monitor Base, Wall Mount Kit, Microfiber Cloth, USB Type-C cable (optional), HDMI cable (optional), DP cable (optional), USB cable (optional), Feature label (optional)3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Package Contents 1-1. Optional and regional cables are not represented as unconditional counts.
Cables included
AASUS ROG Swift OLED PG27UCWM
TypeCount
Power Cord1
DisplayPort 2.1 (DP80) cableNot available
HDMI Ultra High Speed CableNot available
USB 3.2 cableNot available
USB-C cableNot available
Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Package list marks the power cord as standard and the USB-C, HDMI, DP and USB cables as optional. The maker spec page accessories list (varies by region) names the DisplayPort 2.1 (DP80), HDMI Ultra High Speed, USB 3.2 and USB-C cables, and Guru3D and Tom's Hardware found these cables in their boxes. Counts are only stored for the power cord.
BASUS ROG Swift OLED PG34WCDN
TypeCount
Power Cord1
Source3Owner's manualgzhls.at/blob/ldb/e/f/3/5/42b1051cd662ae83107ef0db5e203840884a.pdfRead 5 October 2026Package Contents 1-1 Power Cord is singular and not optional. The generic manual marks every other cable optional, so counts for those are omitted.

Warranty

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Manufacturer warranty (source market)
3years1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Warranty 3 years (including panel burn-in). Country terms can differ.
3years1Maker product pagerog.asus.com/monitors/32-to-34-inches/rog-swift-oled-pg34wcdn/specRead 5 October 2026Global-English exact model Warranty: 3 years including panel burn-in. Country-specific remedies can vary.
Dead pixel policy
Not available
Not available

Both are also in the API. Back to all monitors.