The ROG Swift OLED PG27UCWM and PG32UCWM are now available in stores. They are the first ASUS monitors to feature a tandem RGB OLED panel from LG Display: 4K resolution, 240 Hz, and a dual mode that switches to Full HD at 480 Hz. The 26.5-inch model costs 1,249.90 euros, while the 31.5-inch model costs 1,359.90 euros.
What’s exciting here isn’t so much the refresh rate as the subpixel layout. Without a white subpixel, the way text and colors appear on an OLED changes. And that’s exactly what has been the biggest argument against using OLED monitors at a desk until now.
The most important details at a glance:
- Two models: PG27UCWM (26.5 inches) and PG32UCWM (31.5 inches), both with 3,840 × 2,160 pixels.
- Panel: Tandem RGB OLED from LG Display with a true RGB stripe layout, meaning no white subpixels.
- Dual Mode: 4K at 240 Hz or Full HD at 480 Hz, plus a 0.03 ms response time (GtG).
- Prices: 1,249.90 euros for the PG27UCWM, 1,359.90 euros for the PG32UCWM; both are MSRP including VAT.
- Another new feature is the GaNFET power supply, which, according to ASUS, produces about 35 percent less waste heat.
Tandem RGB OLED: What Improves Without a White Subpixel
Previous WOLED panels use a white subpixel plus color filters. This provides brightness but sacrifices color purity and causes the typical color fringing along the edges of letters when displaying text. Anyone who has ever typed longer texts on a WOLED is familiar with this effect.
The new panel instead arranges the subpixels in stripes—classically red, green, and blue. ASUS states that this results in a color gamut up to 27 percent larger than that of conventional WOLED, along with 99 percent DCI-P3 coverage and a color accuracy of Delta E below 2. Text rendering is expected to be cleaner because there is no longer a white layer interfering.
The “Tandem” part of the name describes the design: multiple OLED layers stacked on top of one another share the load, which benefits both brightness and lifespan. This design is currently gaining traction across the entire industry. Sony uses it in the Inzone M10S II with up to 720 Hz, and at Gigabyte, it’s featured in one of two otherwise identical models, as our report on the AORUS Elite FO27Q28G and FO27Q24G shows. ASUS is now combining both features: the tandem design and the RGB strip.
There’s one catch, though: The certification is VESA DisplayHDR 400 True Black, not 500 as with the brightest current tandem WOLEDs. ASUS specifies the peak brightness at 1,000 cd/m². Those looking for maximum HDR brightness will currently have to look elsewhere, such as the TCL X3B OLED+ with 1,500 nits. The contrast ratio of 1,500,000:1 remains unaffected.
Dual Mode: 4K at 240 Hz or Full HD at 480 Hz
Both monitors can be switched between modes via the menu. In standard mode, they deliver 3,840 × 2,160 pixels at 240 Hz; in the second mode, 1,920 × 1,080 pixels at 480 Hz. This isn’t a software trick, but a genuine switch in the panel’s drive configuration, similar to what ASUS already implemented in the previous model.
In terms of pixel density, the PG27UCWM comes in at around 166 ppi, while the PG32UCWM is at about 140 ppi. This makes the smaller model the sharper one, while the larger one is more comfortable for multitasking. For full connectivity, the monitors include DisplayPort 2.1a with UHBR20 and 80 Gbit/s, plus two HDMI 2.1 ports and a USB-C port with 90-watt Power Delivery. This allows you to connect a laptop to the display and charge it with a single cable.
GaNFET and OLED Care Pro: Combating Heat and Burn-in
The power supply electronics rely on GaNFETs instead of traditional silicon MOSFETs. ASUS reports approximately 35 percent less waste heat and 10 percent lower temperatures at the fan. At Computex, the company demonstrated a 12-degree difference in a direct comparison. With OLED displays, less heat inside the chassis directly translates to a longer panel lifespan.
Added to this is OLED Care Pro. The Neo-Proximity sensor now detects whether someone is sitting at the desk across five sensitivity levels and dims or turns off the display as soon as the user steps away. The Auto-Away timer can be set between 1 and 15 minutes. Pixel Cleaning, Screen Move, Logo Dimming, and Target Mode are also included, controlled via the DisplayWidget Center app. ASUS offers a three-year warranty that includes burn-in coverage.
Monitor Settings via AI Agent
An interesting side note: Using the ASUS Display Control CLI, the monitors can be controlled by compatible AI agents. Instead of clicking through the OSD, you simply tell an assistant to make the display warmer and darker for the evening shift, and multiple parameters adjust simultaneously across one or more monitors.
Whether this becomes more than a footnote depends on which agents actually support the interface. As an idea, though, it’s still more intuitive than navigating through yet another level of the OSD menu.
Technical Specifications Comparison
| Feature | ROG Swift OLED PG27UCWM | ROG Swift OLED PG32UCWM |
|---|---|---|
| Diagonal | 26.5 inches | 31.5 inches |
| Panel | Tandem RGB OLED, TrueBlack Glossy | Tandem RGB OLED, TrueBlack Glossy |
| Resolution | 3,840 × 2,160 (approx. 166 ppi) | 3,840 × 2,160 (approx. 140 ppi) |
| Refresh rate | 240 Hz (4K) / 480 Hz (FHD) | 240 Hz (4K) / 480 Hz (FHD) |
| Response time | 0.03 ms (GtG) | 0.03 ms (GtG) |
| Contrast | 1,500,000:1 | 1,500,000:1 |
| Peak brightness | 1,000 cd/m² (HDR) | 1,000 cd/m² (HDR) |
| HDR | DisplayHDR 400 True Black, Dolby Vision | DisplayHDR 400 True Black, Dolby Vision |
| Color gamut | 99% DCI-P3, Delta E < 2, 10-bit | 99% DCI-P3, Delta E < 2, 10-bit |
| Ports | DisplayPort 2.1a (UHBR20), 2× HDMI 2.1, USB-C with 90 W PD, headphone jack | DisplayPort 2.1a (UHBR20), 2× HDMI 2.1, USB-C with 90 W PD, headphone jack |
| VRR | G-Sync Compatible, FreeSync Premium Pro | G-Sync Compatible, FreeSync Premium Pro |
| Ergonomics | Height 0 to 110 mm, swivel ±30°, tilt -5° to +20°, pivot -90° to +90° | Height 0 to 110 mm, swivel ±30°, tilt -5° to +20° |
| Warranty | 3 years, including burn-in | 3 years, including burn-in |
| MSRP | 1,249.90 euros | 1,359.90 euros |
Prices and availability in Germany, Austria, and Switzerland
ASUS lists the PG27UCWM at 1,249.90 euros and the PG32UCWM at 1,359.90 euros, both as MSRP including VAT. In Switzerland, the same prices apply in Swiss francs. Both monitors are now available at specialty retailers and the usual online stores.
These aren’t exactly cheap, and ComputerBase also classifies the prices as being at the higher end of the spectrum. However, a premium is the rule rather than the exception for a new generation of panels. Those who simply want 4K and 240 Hz can already get that in WOLED and QD-OLED models for significantly less.
Conclusion: Who Will Benefit
The most interesting scenario is mixed use. Those who use the monitor during the day for text, code, and spreadsheets and play games in the evening will benefit the most from the absence of white subpixels: no color fringing around text edges, but OLED black and 240 Hz. It is precisely this trade-off that has been the most unsatisfactory aspect of OLED so far.
On the other hand, anyone who primarily wants to watch HDR movies in a bright room should keep an eye out for the 400 True Black certification. And those looking solely for the highest refresh rate will get more bang for their buck with the 540- and 720-Hz models. Reliable measurements of text sharpness and actual brightness performance will only be provided by independent tests, which are expected to be released in the coming weeks.
FAQ on the ROG Swift OLED PG27UCWM and PG32UCWM
How much do the ROG Swift OLED PG27UCWM and PG32UCWM cost?
The PG27UCWM costs 1,249.90 euros, and the PG32UCWM costs 1,359.90 euros. Both prices are MSRPs including VAT and are the same in Swiss francs.
What is Tandem RGB OLED?
It is an OLED panel from LG Display featuring multiple stacked emission layers (tandem) and subpixels arranged in stripes of red, green, and blue. The white subpixel found in conventional WOLED panels is omitted, which improves color gamut and text sharpness.
How does Dual Mode work?
You can switch between 3,840 × 2,160 pixels at 240 Hz and 1,920 × 1,080 pixels at 480 Hz via the monitor menu. The switch occurs directly within the panel, not via scaling in the driver.
How bright do the monitors get?
ASUS specifies a peak brightness of 1,000 cd/m² in HDR. Both are certified to VESA DisplayHDR 400 True Black, which is one level below the brightest tandem WOLEDs at 500.
How well are they protected against burn-in?
Through OLED Care Pro with a Neo-Proximity sensor, Pixel Cleaning, Screen Move, and Logo Dimming. ASUS also offers a three-year warranty that includes burn-in coverage.
Which of the two is the right choice?
The PG27UCWM, with around 166 ppi, offers a sharper image on a smaller screen and also features pivot functionality. The PG32UCWM, at 31.5 inches, provides more workspace at approximately 140 ppi.
Conclusion
With the PG27UCWM and the PG32UCWM, ASUS is launching the first generation of OLED monitors that are no longer defined by their refresh rate, but rather by their subpixel layout. This is precisely what makes OLED monitors appealing for desk work: an RGB stripe instead of a white subpixel, plus 4K at 240 Hz, a dual mode at 480 Hz, and a cooler GaNFET power supply. The price is clearly higher than what comparable 4K OLEDs currently cost, and there’s still room for improvement in terms of HDR brightness. For anyone looking for a monitor that handles both work and gaming, this ROG Swift OLED is nonetheless the most interesting new release of the year.
Sources: ASUS (PG27UCWM), ASUS (PG32UCWM), ASUS press release, ComputerBase
