Buying Guide
The Best 32-Inch OLED 4K Monitors
Three monitors ranked on refresh rate and screen size, where the MAG 321UP has the largest screen size, and it also costs the least.
By The PC Journal editorial team
11 min read3 products evaluated
At 32 inches, pixel density decides how sharp text and games look from a normal seat. Every monitor here measures about 32 inches, is 4K and uses an OLED panel, ordered by refresh rate.
We ranked these monitors on refresh rate, resolution and size using manufacturer specifications; where a maker leaves out HDR, we say so rather than guess, since we have not benched them.
Quick Picks
Our 3 recommendations at a glance. Tap a pick for the full verdict.
Also Consider
MSI MPG 321URX QD-OLED
A built-in KVM with picture-in-picture.
Best for: Buyers who want built-in KVM with picture-in-picture.
Our take Check price for MSI MPG 321URX QD-OLED (opens in a new tab)
Premium Pick
MSI MPG 321URXW QD-OLED
Up to 1000 nits peak brightness at the highest price in the group.
Best for: Buyers for whom price is not the deciding factor.
Our take Check price for MSI MPG 321URXW QD-OLED (opens in a new tab)
Largest Screen Size
MSI MAG 321UP QD-OLED
The largest screen size here (32 inches).
Best for: Buyers who put screen size first.
Our take Check price for MSI MAG 321UP QD-OLED (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| A built-in KVM with picture-in-picture. | Buyers who want built-in KVM with picture-in-picture. | Check price for MSI MPG 321URX QD-OLED (opens in a new tab) |
| Up to 1000 nits peak brightness at the highest price in the group. | Buyers for whom price is not the deciding factor. | Check price for MSI MPG 321URXW QD-OLED (opens in a new tab) |
| The largest screen size here (32 inches). | Buyers who put screen size first. | Check price for MSI MAG 321UP QD-OLED (opens in a new tab) |
Our Picks
Also Consider1 of 3
MSI MPG 321URX QD-OLED on Amazon (opens in a new tab)
MSI's MPG 321URX is a 31.5-inch 4K QD-OLED at 240Hz with a built-in KVM, so one keyboard and mouse can switch between a desktop and a laptop.
Best for
- Buyers who want built-in KVM with picture-in-picture.
Skip if
- Skip it if this is a deal-breaker for you: oLED burn-in risk with static desktop elements.
Why we like it
USB-C input rounds out the ports. It matches the MPG 321URXW on refresh rate (240Hz). On screen size it ties with the MPG 321URXW at 31.5 inches.
It also offers HDMI 2.1 and DisplayPort 1.4a inputs and an HDMI 2.1 input for consoles. Reaching 240Hz at 4K needs DisplayPort 1.4 with DSC or HDMI 2.1 on your graphics card, and a GPU able to render well above 100fps at 4K. Leave the maker's pixel-refresh routines enabled and hide static taskbars to limit burn-in risk. On price it sat second of 3, between the cheaper MAG 321UP and the pricier MPG 321URXW, at the time of writing.
Key dimensions & specs
- Refresh rate: 240Hz
- Resolution: 3840x2160 (4K)
- Size: 31.5 inches
- Panel: QD-OLED
- Response: 0.03ms
- HDR: DisplayHDR True Black 400
- USB-C: Yes
Pros
- a 240Hz refresh rate for fast motion
- 4K resolution for sharp text and detail
- a QD-OLED panel with per-pixel contrast
- DisplayHDR True Black 400 certification
Cons
- OLED burn-in risk with static desktop elements
- Costs more than the MAG 321UP at the time of writing
Premium Pick2 of 3
MSI MPG 321URXW QD-OLED on Amazon (opens in a new tab)
MSI's MPG 321URXW is a 31.5-inch 4K QD-OLED at 240Hz with 99% DCI-P3 coverage.
Best for
- Buyers for whom price is not the deciding factor.
Skip if
- Skip it if this is a deal-breaker for you: oLED burn-in risk with static desktop elements.
Why we like it
It is the 32-inch step up from the 272URX. On refresh rate it ties with the MPG 321URX at 240Hz. It matches the MPG 321URX on screen size (31.5 inches).
It also comes with up to 1000 nits peak brightness, a white finish and an HDMI 2.1 input. Reaching 240Hz at 4K needs DisplayPort 1.4 with DSC or HDMI 2.1 on your graphics card, and a GPU able to render well above 100fps at 4K. Leave the maker's pixel-refresh routines enabled and hide static taskbars to limit burn-in risk.
At our last price check it topped the group, with the MPG 321URX the nearest cheaper option. Screen size is its weakest area, and the MAG 321UP covers it better at 32 inches.
Key dimensions & specs
- Refresh rate: 240Hz
- Resolution: 3840x2160 (4K)
- Size: 31.5 inches
- Panel: QD-OLED
- Response: 0.03ms
- HDR: DisplayHDR True Black 400
- Color gamut: 99% DCI-P3
Pros
- a 240Hz refresh rate for fast motion
- 4K resolution for sharp text and detail
- a QD-OLED panel with per-pixel contrast
- DisplayHDR True Black 400 certification
Cons
- OLED burn-in risk with static desktop elements
- Screen size trails the MAG 321UP (32 inches)
- Costs more than the MAG 321UP at the time of writing
Largest Screen Size3 of 3
MSI MAG 321UP QD-OLED on Amazon (opens in a new tab)
The MSI MAG 321UP is a 32-inch QD-OLED that stops at 165Hz, which keeps its price below the 240Hz models.
Best for
- Buyers who put screen size first.
Skip if
- Look at the others if this bothers you: oLED burn-in risk with static desktop elements.
Why we like it
Its HDMI 2.1 port carries full 48Gbps bandwidth for 4K at 165Hz from a console or PC. Its 165Hz refresh rate is the lowest in this group; the MPG 321URX leads at 240Hz. Its 32 inches screen size is the largest here; the MPG 321URX comes next at 31.5 inches.
It also comes with an HDMI 2.1 input for consoles. Reaching 165Hz at 4K needs DisplayPort 1.4 with DSC or HDMI 2.1 on your graphics card, and a GPU able to render well above 100fps at 4K. Leave the maker's pixel-refresh routines enabled and hide static taskbars to limit burn-in risk. It undercut the MPG 321URX and every other pick on price at the time of writing.
Key dimensions & specs
- Refresh rate: 165Hz
- Resolution: 3840x2160 (4K)
- Size: 32 inches
- Panel: QD-OLED
- Response: 0.03ms
- Adaptive sync: FreeSync Premium Pro
Pros
- 165Hz for smoother motion than a 60Hz office screen
- 4K resolution for sharp text and detail
- a QD-OLED panel with per-pixel contrast
- FreeSync Premium Pro to reduce screen tearing
Cons
- OLED burn-in risk with static desktop elements
- Refresh rate trails the MPG 321URX (240Hz)
How We Chose These 32-Inch OLED 4K Monitors
Each pick was assessed across 4 criteria weighted for real-world use.
- How these picks were ranked
- We compared three monitors on refresh rate, resolution, screen size and panel from manufacturer specifications. We did not test them in-house.
- What every pick has in common
- All 3, from the MPG 321URX to the MAG 321UP, state refresh rate, resolution and screen size and share 3840x2160 (4K) resolution and QD-OLED panel.
- Where the specs have gaps
- The MAG 321UP gives no HDR.
- Price range
- From the MAG 321UP to the MPG 321URXW, all sat in the $500 to $1000 tier when we checked.
What to Look for in a 32-Inch OLED 4K Monitor
Key buying criteria so you get the right fit the first time.
Refresh rate
Here refresh rate runs from 165Hz on the MAG 321UP to 240Hz on the MPG 321URX. Start with the MPG 321URX if refresh rate decides it.
Screen size across these picks
Here screen size runs from 31.5 inches on the MPG 321URXW to 32 inches on the MAG 321UP. The MAG 321UP is the pick for screen size.
Extras that separate them
The MPG 321URX: HDMI 2.1 and DisplayPort 1.4a inputs. The MPG 321URXW: a white finish. The MAG 321UP: a console mode.
Budget
All 3 sat in one tier when we checked, from the MAG 321UP at the low end to the MPG 321URXW at the top, so decide on features first.
Start from what matters most
Buyers for whom price is not the deciding factor: the MPG 321URXW. Buyers who put screen size first: the MAG 321UP.
How to Choose a 32-Inch OLED 4K Monitor
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who want built-in KVM with picture-in-picture | MPG 321URX | A built-in KVM with picture-in-picture |
| Buyers for whom price is not the deciding factor | MPG 321URXW | Up to 1000 nits peak brightness at the highest price in the group |
| Buyers who put screen size first | MAG 321UP | The largest screen size here (32 inches) |
Scroll sideways to see every column.
Key specs side by side
The MPG 321URX leads on refresh rate at 240Hz, ahead of the MPG 321URXW at 240Hz.
| Monitor | Refresh rate | Resolution | Size | Panel |
|---|---|---|---|---|
| MPG 321URX | 240Hz | 3840x2160 (4K) | 31.5 inches | QD-OLED |
| MPG 321URXW | 240Hz | 3840x2160 (4K) | 31.5 inches | QD-OLED |
| MAG 321UP | 165Hz | 3840x2160 (4K) | 32 inches | QD-OLED |
Scroll sideways to see every column.
Frequently Asked Questions
Which has the largest screen size: the MAG 321UP or the MPG 321URX?
The MAG 321UP leads at 32 inches, with the MPG 321URX at 31.5 inches.
What does the MPG 321URXW add over the MAG 321UP?
On paper it adds refresh rate (240Hz against 165Hz). It does not win everywhere: the MAG 321UP still leads on screen size (32 inches). The MAG 321UP was the lowest-priced pick when we checked, so pay the difference only if those gains matter to you.
Why is the MAG 321UP our Largest Screen Size pick?
It earns the label for the largest screen size here (32 inches). It suits anyone who put screen size first.
What extras do the MPG 321URX and the MPG 321URXW include?
The MPG 321URX: a built-in KVM with picture-in-picture. The MPG 321URXW: up to 1000 nits peak brightness. The MAG 321UP: an HDMI 2.1 input with full 48Gbps bandwidth for 4K at 165Hz.
Should I pick the MPG 321URX or the MAG 321UP?
The MPG 321URX suits buyers who want built-in KVM with picture-in-picture; the MAG 321UP suits buyers who put screen size first.
Bottom Line
Our first pick is the MPG 321URX, chosen for a built-in KVM with picture-in-picture. Look at the MPG 321URXW for up to 1000 nits peak brightness at the highest price in the group and the MAG 321UP for the largest screen size here (32 inches) if those matter more to you.
Use the cable in the box; older cables can cap the refresh rate.