Dell

UltraSharp 40 Curved WUHD Monitor - U4021QW

Dell UltraSharp 40 Curved WUHD Monitor - U4021QW

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Overall

#73 in

Ultrawide Monitors

according to Reddit Icon Reddit

Sentiment score57% positive
8
4
2
Last updated: Jul 7, 2026

Reddit Reviews

Reddit Icon0xe1e10d68
about 1 month ago

It won't look as sharp as Retina (although it's not too bad and depends on personal preference) and/or will have problems with scaling (my DELL U4021QW doesn't really scale as well as a 5K 16:9 display).

Reddit IconCammKelly
10 months ago

I work during the day and game during the night on a LG 45" 5k2k. Whilst its good for productivity, the curve is honestly annoying for it and if I wasn't gaming, would drop to the Dell 40" 5k2k IPS.

Reddit IconIchingNYEU
8 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.

8 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 IconIrish_swede
8 months ago

The Dell 40” IPS 5k2k is an end game office monitor setup, so if LG’s quality is good and QC is good, you’re more right than you think.

8 months ago

For me who plays games like Europa Universalis when not editing my photography hobby thats why Dell is king. On top of all that it’s nice to be able to have my large excel sheets fully visible without having to put on my readers because the text is too small. It just fit everything for me. The key words are obviously “for me.”

5 months ago

The dell 5k2k 40” or the 6k 52” will do you wonders. Beautiful text clarity, color accuracy, and dell monitors are usually tanks.

Reddit IconMSFlight
9 months ago

Yes , i recommend the DELL 40" ( 5k x 2k ) IPS !

Reddit Iconseanocono22
8 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.

6 months 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!

6 months 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.

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Rankings by Use Case

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