I have set up side by side Dell S2719DGF (TN), and Dell U2518D (IPS), both are 1440p and running at 60 Hz. Dell S2719DGF can run at 144 Hz but not on my setup.

Very obviously the Dell U2518D is painful to look at, making the muscles around my eyes tense and my face hurt. Very immediate effect. The Dell S2719DGF is comparatively much easier to look at. I'm not sold 100% on it yet but it's not immediately painful and it doesn't have the text legibility issues of the Samsung 24CFG73.

Main differences between the panels is size (25 vs 27 inch on the S2719DGF), which I think is making no difference in this case, panel type (IPS vs TN, I'm currently on the fence about panel type and eye strain, but there is a general trend towards IPS panel being more painful for me, but there are confounding factors. My laptop panel is IPS and not so painful), and FRC (S2719DGF is true 8 bit with no dithering, and U2518D is 8 bit + 2 bit FRC).

14 days later

As is often the case, my initial impressions were wrong. The Dell 2719DGF is not good. It's worse than the Dell U2518D. I now enjoy the Dell U2518D and it is my primary display.

EDIT: Neither is good.

10 days later

During the holidays, as you can see from all my posts, I tried many different monitors. I returned all of them and settled on the Dell U2518D. On my known good set-up with Windows 7 and an old Quadro card, it was enough to get me to switch over from my BenQ EW2440L. Despite my ramblings about IPS being rubbish, I continued to find it superior to the Dell S2719DGF. I tried the Samsung C24FG70. I did enjoy the Quantum Dot backlight (less sensation of wanting to turn the brightness down), but the subpixel arrangement is compromised for viewing text (and essentially everything actually), and if you spend long enough reading on it, I'm convinced even non-tech sensitive people with good vision will eventually experience "regular" eyestrain trying to decipher the text. I look forward to trying a Qauntum Dot backlit monitor on a regular subpixel arrangement. I understand LG has such a thing with their NanoIPS technology, but I noticed several people have reported eyestrain with the LG 27GL850. However, this could just be due to the popularity of the monitor.

The Dell U2518D does have 8 + 2 bit FRC.

EDIT: It is not good.

    degen Interesting that you noticed an improvement with the quantum dot.

      5 months later
      9 days later

      For me its all about contrast ratio of the screen. Keep it under 1000:1 and i have no issues with eye strain. I notice that the Dell u2410 gets a lot of good comments and that has a ratio of 550:1. Trust me on this....its the same for me with TVs and mobile phones. I use an HONOR 20 which has a contrast ratio of 875:1 and i can stare at it all day. Just research this aspect before you buy your next screen or monitor or phone and you will thank me later 😀

      12 days later

      U2410 is great. Does anyone know of a 27" that has the same properties and thus no issues?

      13 days later

      Has anyone tested this portable monitor?

      LepowZ1 (15.6", FHD 1080P HDR IPS)

      16 days later
      7 months later

      Yup, as are the early dell 24XX/25XX

      6 months later

      I tried a Philips 242B1 monitor. Connected it to my son's ASUS ROG Strix (i5 10th gen + Nvidia 1650) by HDMI and to my Intel HD 2500 desktop by HDMI and VGA. Very bad experience. The image seems unstable and somewhat blurry. Trouble to focus. Eye fatigue. Only usable with Intel graphics turned off on the laptop. Very high minimal brightness. Looks like a low quality panel improved with brand technologies. Returned it.

      • KM likes this.
      dev