INNOCN 15.6 inch Portable Monitor Touchscreen 4K OLED PU15-Pre USB Type C HDMI External Monitor with Battery for Laptop PC Mac Tablet PS4 Xbox Switch

This is the best montor I bought out of three on Amazon but it also way more expensive than the other two....

This 15.6-inch portable OLED monitor is such a great product in so many aspects, but the ways it's lackluster prevents me from giving it a full recommendation. First of all, I wanted to comment on the color accuracy. The product actually comes with a factory calibration report of the Adobe RGB and DCI-P3 ranges. And, it shows! When I compared it using its stock 6500k color profile, which was reported to be calibrated, it matched up almost perfectly with my other calibrated monitors. This makes it a great choice for doing serious color-attentive work. That's more you can say about a lot of portable monitors... Second, the resolution for this thing is just outstanding! Pushing 4k into a 15.6-inch screen might be deemed as overkill for this size, but boy does it make it look sharp! Even at close viewing distance, it was very hard to discern any pixels. With its PPI of about 282, you can truly call it a retina display. Such a joy to any productive work, especially for general media consumption. And the build quality is just out of the park. The build is made with a high-quality heavy metal frame. It feels more similar to a premium tablet from Samsung or Apple. However, my unit's power button did have problems being pressed down. It was unnecessarily hard when compared to the clicky and normal volume buttons. It also had a respectable amount of brightness. It seemed to be just ever so slightly brighter than my MacBook's screen, which is rated at 400 nits. Keep in mind this was at full brightness. Great build, great brightness, great resolution, great color accuracy, oh and did I mention it also has a built-in battery? Though it does add a bit of weight to it, still. It's almost perfect. Almost... There were a couple of problems I had that made me have to drop it a star. One of the main problems was latency. Another plus this monitor packs is that it comes with a screen digitizer, so it can register your touches onto a device that is connected through USB-C. Though it's a great addition to what this unit already offers, it does have a half of a second lag. I am not sure if this is just a common thing with portable monitors that have touch screens, but it does create an annoyance with the device you are using it with. And for gaming, it's not the best choice. Most gamers would probably already be distraught with it only having 60 Hz, but the monitor also has a good amount of general latency for any video signal. I measured it to be about 45 ms worth of lag. It's not a big deal for any productive work, but it's noticeable in any gaming that isn't very casual. It's unusual for an OLED screen as well. It also doesn't support overclocking to its refresh rate very well. At just 65 hz at any resolution, it already started frame skipping. And it wouldn't show any picture past 71 hz. Disappointing as this also could have helped with its input lag. I really, really do like this product. I think it's one of the most jammed-packed, valuable monitors you can get for $400. Its input latency and refresh rate just became a deal breaker for me, and it may be for anyone trying to do any gaming with a mouse. If these problems are fixed, it will be a jack of all trades. Great for professionals who do color-related work, for gamers, and for everyone else who just wants the amazing contrast out of a good quality OLED panel. As of now, it's only great for two of those people. But hey, I am sure many people would not find the latency a major problem at all. If the manufacturer is listening, you did a darn good job with this product. I don't think this product deserves the 2.5 stars it currently has, as of writing this. But please, work on retaining the high-resolution while increasing the refresh rate and lowering the input latency. I also really do appreciate the custom-made OSD that works well with touch.

I ordered INNOCN’s portable monitor, because the one I previously purchased from them a couple of years ago was of such stellar quality. Which is why I was totally surprised to open the box finding round metal weights crudely taped in to simulated said order’s weight. Immediately returned it for a full refund. Shocked how this could have let this slip by.

Two starts because it is well built, and if all worked would be a great little device The display output worked fine over USB-C and HDMI, but I was never able to get the touch input to work. I spent way too much time trying because it's a nice screen. Working with Innocn tech support by email I tried a few things, and they verified that it does NOT work with a Samsung S23 Ultra phone (other touch monitors work just fine, including the Lenovo one I normally have it plugged into). The touch input did not work on a M1 Macbook Pro connected by USB-C, an HP Omen Windows laptop by USB-C or HDMI+USB, a custom Windows desktop by HDMI+USB, or a custom Linux desktop also by HDMI+USB. Those are all the devices I have convenient to test it with, and while the display output worked on all of them I could never get the touch input working. On Windows the device manager showed the billboard device for display output, but no USB device for touch input. The same was true on Linux (with lsusb -tv). Would be great, if it worked. Tech support said no firmware updates are available. Maybe they'll fix this sooner or later but for now, it's a risky buy. I ended up returning it.

Build quality is really solid, and it's great that it's properly calibrated before it came out. Text is really crisp and clear, colors are OLED good. I was wondering if 4K would be overkill for a 15.6" monitor (it's higher DPI than my M1 Pro). The UI is around the same size as the "more space" option on my 16" M1 Pro (upscaled 2056x1329) which is perfect actually. It looks great connected to the thunderbolt 4 USB-C port on my laptop, though it will drain battery if not plugged in. Every portable OLED monitor does this however, and least there's a battery that'll last a few hours if you don't want to fuss with a second cable. Past that the brightness either needs to be low or you'll start glitching it out / have it shut down due to not getting enough power, but that's every monitor of this class. I haven't tried the HDMI connection yet. Steam deck looks gorgeous hooked up to it directly via USB-C. I have a 140w wall charger with a magsafe and a usb-c cable in it so that's not a huge deal (I can charge something else that needs it while the monitor is on battery). If the charging is a dealbreaker go with a 4k@60 portable IPS. You can get them a lot cheaper, and some even in 16:10 aspect ratio. Touch controls seem to single point on macOS, but I didn't really get it for that and it's convenient using the on screen menu with them. The screen is VERY glossy, more than my M1 Pro, so if you're in a high contrast bright environment that could be obnoxious. I would have traded a little pop for less reflections. The cover is a bit meh. The plastic is very secure once it's on, but the cut outs cover some of the labeling on the monitor. The actual mechanism for having it be a stand feels very secure, but isn't adjustable. The foldable side doesn't really stick strongly onto the monitor - I'll be slipping it in a sleeve in a messenger bag most of the time, but I wouldn't toss it into a backpack. YMMV on how much of an issue that is. I compared this against the only 3k@120 OLED (16:10 aspect ratio, same charging situation) portable monitor. On paper that was a win, but I ended up sticking with this monitor. I was getting some horizontal glitches on the 3k, there was visible banding in gradients, the pattern at the "Clock and phase" page of Lagom LCD test had strong vertical lines in it vs looking what the miniLED on my M1 Pro looked like, and getting the UI to be around the same size as my "more space" option led to the text being blurry. At default resolution (or just bumped up to HiDPI 1600x1000 vs 1440x900) the 3k one looked great, and colors were accurate enough for casual use.