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UltraSharp 40 Curved WUHD Monitor - U4021QW

Dell - UltraSharp 40 Curved WUHD Monitor - U4021QW

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Based on 1 year's data from Feb 15, 2026 How it works

Reddit IconAsiancookBob 1.0
r/ultrawidemasterraceWhat 5k2k monitor size would you choose and why? 45”, 39” or 34”
11 months ago

39" (well 40") since I got used to starting with my previous Dell U4021QW, then U4025QW.

Reddit IconIchingNYEU 1.0
r/ultrawidemasterrace2nd hand Dell U4021QW for £600? Any good? Wait for a U4025QW to crop up?
4 months ago

Hey, I'll chip in since I'm in the same boat, I can also grab U4021QW for $600 in perfect condition and warranty and I've been eyeing U4021QW - these can be had for around $900 if you get lucky. U4021QM is 60Hz, both HDMI outputs can only do 30Hz so you need to use USB-C and/or DP. U4025Q is 120Hz and there was a recent firmware update that addresses some MAC issues. I'm personally rocking AW3821DW and U3818DW. I do enjoy playing games here and there but I see no difference 60Hz vs 144Hz when it comes to productivity. I may grab U4021Qw just to check out since the price is so good. It's up to you how much you want to spend. HTH.

r/ultrawidemasterrace2nd hand Dell U4021QW for £600? Any good? Wait for a U4025QW to crop up?
4 months ago

Hey, I'll chip in since I'm in the same boat, I can also grab U4021QW for $600 in perfect condition and warranty and I've been eyeing U4021QW - these can be had for around $900 if you get lucky. U4021QM is 60Hz, both HDMI outputs can only do 30Hz so you need to use USB-C and/or DP. U4025Q is 120Hz and there was a recent firmware update that addresses some MAC issues. I'm personally rocking AW3821DW and U3818DW. I do enjoy playing games here and there but I see no difference 60Hz vs 144Hz when it comes to productivity. I may grab U4021Qw just to check out since the price is so good. It's up to you how much you want to spend. HTH.

Reddit Iconseanocono22 1.0
r/ultrawidemasterraceGetting Dell U4025QW. Did i pick wrong one? Productivity only
3 months ago

I’ve had two of the U4021 versions for 3.5 years now. They are near perfect productivity monitors, and I imagine the U4025 is even better.

r/ultrawidemasterraceDell launches the best monitor for productivity. What are your thoughts?
about 1 month ago

Are you a Mac user? I would love to know what the MacOs scaling options are. I currently use stacked Dell U4021QWs. I’m also curious about your impressions regarding 140ppi vs. 129ppi. So please report back on Thursday!

r/ultrawidemasterraceBest Ultrawide for Productivity?
11 months ago

Dell 40” is the best monitor for productivity.

r/LinusTechTipsThey seemed more impressed by that 52” Dell monitor than they should be IMO
about 1 month ago

Do you stack them? I’ve stacked the 40” Dells for about 5 years now. I love them, but have been considering an upgrade and this new 52” panel might fit the bill.

Reddit Iconsob727 1.0
r/ultrawidemasterraceGetting Dell U4025QW. Did i pick wrong one? Productivity only
3 months ago

I had the 4021 before the 4025. Couldnt tell the difference tbh (yes, one is 60Hz the other is 120Hz, still couldnt tell them apart).

r/ultrawidemasterraceIs it too early for 5120x2160? Should I stick with 3440x1440?
5 days ago

5120x2160 (Dell) and 5090 here With DLSS and RT Medium (I think?) I get around 80 fps in Cyberpunk 2077 and less in STALKER2 (RDR2 does better, above 100). So yeah, I expect to be limited in future and more demanding titles. EDIT: dont get me wrong I have no regrets, my primary use is productivity and 5k2k is a great resolution. If I was primarily a gamer I would stick to a lower resolution for now.

Reddit Icon_Bob-Sacamano 0.2
r/ultrawidemasterraceon the fence of buying a LG Ultragear 45GX950A-B. Should I wait for the 240hz bendable or wait for the 39inch one
4 months ago

I have my 800r for gaming on the same desk as my 2500r. Have never wanted to bend either. If anything, I'd want a bigger curve on the 2500r Dell 😅

r/ultrawidemasterraceMy terse review of the LG 45GX950A-B (5K2K)
3 months ago

Thank you for the comment on the curve. I swear to god half the forum won't shut up about it. When actually using it, I don't even think about it. It sits next to my 2500r Dell I don't even notice switching back and forth really.

Reddit IconNoJesusOnlyZuul 0.2
r/ultrawidemasterrace5k2k 40" vs 5k 1440p 49" for productivity - resolution vs physical dimensions
4 months ago

Ive used both, have also had the LG 45 5K2K and Samsung 57. Currently have the Samsung 40 5k2k. The LG text issue makes it pretty awful for productivity. The vertical space is essential, so Id recommend the Samsung 40, plus I believe it's on sale

Reddit IconAggressive_World_193 0.1
r/ultrawidemasterrace[Real-User Invite] LG UltraGear 5K2K GX9: The Ultimate Sweet Spot of UltraWide OLED Gaming Monitor
10 months ago

I just got the Dell 5k2k 40inch but this one has OLED and got me all interested in it. It’s also slightly bigger too. And that button switch for a higher refresh rate is a welcome function.

Reddit Iconalfasenpai 0.1
r/ultrawidemasterraceI bought this monitor and its text clarity is terrible… any idea why?
2 months ago

Oled is not ideal for text clarity. Like someone else commented what you want is a good 5k2k. For productivity Dell Ultrasharp 5k2k is a good bet.

Reddit Iconalp82 0.1
r/ultrawidemasterraceAS A DEV -
8 months ago

I'm going back from a single ultrawide to a dual monitor setup. By adding another ultrawide. My 40" Dell will move to the top and at the bottom I'll add an LG Ultrasharp 45".

Reddit Iconannihilatorg 0.1
r/ultrawidemasterraceGamers who also work from home, what monitor do you swear by?
11 months ago

Ditto on the U4025QW. I had dual 27" 4ks before I bit the bullet on the dell 40". I'm not a twitch shooter player but everything I play is solid (similar to your game list). I did upgrade to the AMD 7900xt in my gaming box though. The integrated KVM is the best feature and works well. I used to have a dock and dual DP kvm. All that extra stuff is gone now. Single usb-c cable (with power delivery!) to the work laptop and one DP cable and USB cable to the desktop. Done.

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