We can also compare the motion clarity of the Corsair 45WQHD240 here against some super-high refresh rate 360Hz LCD screens we’ve reviewed. You can see that actually despite the lower refresh rate (by 33%) the motion clarity is very similar here from the 240Hz OLED panel. There is a ratio of approximately 1.5:1 when it comes to motion clarity between an OLED screen and an LCD screen, thanks to the near-instant response times. So you get a motion clarity in practice beyond what you might expect from the refresh rate number. We have compared the Corsair against two 360Hz screens here. Because of the cooler image, the colour accuracy was impacted and we now had a dE average of only 3.3, which would be considered moderate. Allows the user to choose between USB data transfer speeds but can affect the refresh rate of the monitor. This term has become a little mixed up in the OLED market and sometimes associated with two different things. The correct usage for this term is related to how OLED panels operate from a technical and physics point of view, the other incorrect usage is where it has become associated with the ASBL (Auto Static Brightness Limiter) image protection feature common on OLED screens. We’ve talked about what an “ASBL” function on an OLED display would do above, which dims the brightness of the screen when it detects static images. ASBL isn’t featured on this screen anyway, but this is often what people think ABL means, but it’s not. The Corsair XENEON FLEX has a few extra features to improve the user experience. You can use its Picture-by-Picture and Picture-in-Picture modes with either two HDMI sources or a combination of sources connected to HDMI, DisplayPort, or USB-C. It also has a KVM switch that makes it easy to switch between sources and use the same keyboard and mouse connected to the monitor. To use this feature, you need to have the USB-C to USB-A cable connected from the bottom USB-C port on the monitor to your computer, and you can have one device connected via HDMI or DisplayPort and the other via USB-C using DisplayPort Alt Mode. It works well, and even if switching inputs takes 2-3 seconds, there are no issues.

I understand the method behind this madness. My everyday monitor is a flat ultrawide. I prefer it when writing, editing photos, or viewing multiple windows, as a curved monitor can cause distortion in productivity apps. Unfortunately, the flat display is also less immersive in most games. I made the choice to buy a flat ultrawide knowing that my in-game experience would be slightly compromised – but now, with the Xeneon Flex, I can have the best of both.Now the negatives. Some people have dinged the monitor because, with it's very large size but only 3440x1440 resolution, the pixel density is lower than what a typical 4k monitor would have. But for me this is more of a bonus than a downside. The argument that the density is too low is mostly about text. With less pixels per inch being used to create text the monitor doesn't have the same level of crispness that a smaller 4k monitor would, but what usually goes unsaid about that is that higher density also makes the text on the screen smaller. Because of the large screen size and somewhat lower pixel density text on this screen is much more readable, particularly if you are middle aged or above. And while the text might be theoretically less crisp on this monitor, if there is any fuzziness to it I can't see it, so all in all I actually appreciate the larger, more readable text. Brightness -> I game and work with lights on, I have no issue at all. There is a built in ABL(Auto brightness limiter) that is aggressive, but interesting part is it doesn't affect you while gaming. But, regular desktop usage takes time to get used to. There is a brightness stabilizer - If you use this the brightness is way below sub-par. I would recommend turn off brightness stabilizer and get used to the built-in ABL. This way you get the best experience it could offer in terms of brightness.

However, we have seen some other OLED monitors like the Dell Alienware AW3423DW (QD-OLED panel) which can reach over 1000 nits so we’d have hoped for a bit more here really, without needing to resort to cooler colour temps. Especially since LG.Display have used the latest generation META / MLA panel technology, and have advertised a 1000 nits peak brightness spec for the panel. Conclusion

The "0" brightness level is still too bright for my photosensitive eyes. The lowest brightness in SDR for this monitor is 40 nits according to RTINGS.com, which I failed to consider before buying. At night, my workaround was using software like f.lux to dim the colors far below OSD minimum. However, it's very difficult to make the display look pleasant in pitch-dark environments, partially due to the screen's graininess (discussed later). As for daytime, I still keep the display near minimum brightness since my monitor is never in direct sunlight. Colour accuracy of wide gamut Rec.2020 content was very good overall. With a moderate 73.9% coverage of this very wide colour space possible, the largest errors came in red, green and cyan (dE 6.7 max), which is typical for any HDR display really. The average dE was still an impressive 1.6 and colours and skin tones looked accurate. This was a good factory setup for HDR accuracy in the ‘standard’ colour temp mode. The corsair ICUE software at the time of writing does'nt yet support this screen but I'm sure in time they will add this, also they dont offer a windows driver to save displaying a generic monitor in the device manager, again 'm sure this will be fixed at some point. You can see the recommended OSD settings above that go along with this profile. Our calibrated ICC profilefor this display is available now for our Patreon supportersand will be added to our main database in the coming months. Office and General Use Size, curve and resolution Corsair say that the OLED panel itself has an almost limitless bending life cycle, and the mechanical bending mechanism structure is targeted to between 10k – 15k life cycles. Even if you were a heavy user and decided you wanted to use that 5 times a day, every day of the year, this means it would last 5.5 years (10k cycles). In reality, it should last a very long time for any normal user.

Corsair’s Xeneon Flex 45WQHD240 is great for gaming, but it’s much less practical for use as an everyday driver. That is, if I’m willing to work for it. Flexing the Flex means unclipping and pulling out a handle on each side of the display, then wrestling it into the desired position. It’s unsettling. The plastic rear panel squeaks and squawks while the entire display shakes. The process requires enough physical effort to feel dangerous to the monitor’s health. When you enable an HDR input source you are left with very few available settings in the menu. There is just a single HDR preset mode, and most other picture related settings are greyed out and unavailable, with the exception of sharpness and two colour temp modes. You can switch the colour temp between ‘standard’ and ‘default’ which we will test in a moment. Note that you can also enable ‘Brightness Stabilizer’ mode in HDR which you would almost certainly want to turn off, as you want to maximise brightness regardless of the behaviour of the ABL. We don’t care about that for HDR multimedia and gaming like we would for desktop/office use. This setting is remembered from your SDR mode which is a bit annoying, as it means if you want to use it for SDR/desktop, but turn it off for HDR, you have to do so from the OSD menu. This is perhaps something Corsair could tweak in a future firmware, either make the setting available and remembered independently in SDR vs HDR, or just disable it for HDR perhaps as it’s unlikely to be needed. Peak brightness in this ‘standard’ colour temp mode reached a maximum of 726 nits in our tests, and that was on a 2% APL window (and basically the same for smaller APL). So for small highlight areas, the max peak brightness was pretty decent for an OLED panel. It’s on par with LG.Display’s 42″ and 48″ OLED TV’s (~700 nits) which is good, but it isn’t getting anywhere near the advertised 1000 nits peak brightness spec for this display – although we will try the other colour temp mode in a moment. Due to the OLED ABL, the peak brightness dropped for larger APL’s but this is typical. At a full white windows (100% APL) the sustained brightness was only 144 nits, which was the same we’d seen at 100% window in SDR. On the other hand, the Xeneon Flex offers good luminance stability in HDR mode. Moving from a bright to dark scene, or vice versa, rarely causes a shift in panel brightness that’s distracting, or even noticeable. Variance does occur on occasion: I noticed occasional shifts when expanding or minimizing a bright, white window, such as a Google Docs document. But these shifts were infrequent and less distracting than on Alienware’s AW3423DW.

Orbit mode (burn-in prevention feature) will cause the image to be off-center on the monitor frame, by design. This feature will shift the screen by 1 pixel every minute, slowly orbiting in the frame, which may bother some people (it can be turned off). It's very easy to adjust the height, tilt, swivel, and pivot of the monitor. But the frame around the bezel is so thin that it's easy to accidentally smudge the screen edge with your fingerprints while trying to adjust it. We talked earlier about the relatively low resolution and pixel density of this panel when it comes to office, general and productivity uses. For gaming, it is less of a problem in general especially if you sit further away from the screen as you might do on something this size. The 3440 x 1440 resolution still provides a nice ultrawide format that is supported by some games, and a great feeling of immersion too thanks to the large screen and ultrawide format. This immersion is more than you’d get on smaller screens and 16:9 formats, and is enjoyable to use. The resolution doesn’t look as sharp and crisp when you use the screen up close as some high pixel density screens, and you may lose some detail in graphically rich games. But we think most people will find the density perfectly fine for gaming. If you move further away from the screen when using a controller, or using a games console, this becomes even less of an issue. We calibrated the screen at a software level using Portrait Display’s Calman Ultimate software and our calibration tools.