Acer Predator XB321HK bmiphz 32-inch IPS UHD (3840 x 2160) 4K UHD 2160p NVIDIA G-Sync Widescreen Display (2 x 2w speakers, 4- USB 3.0 Ports, HDMI & Display Port),Black

1. First, I'm impressed by Amazon's service quality. I ordered a priority delivery, it was guaranteed to arrive on a certain day. Monitor didn't make it in time, was late a couple of days. Then Amazon found it out and refunded the FULL shipping amount, even though it was a bit less than $300 (international delivery) even without me asking!2. The monitor is great. Just ran all the monitor tests I could find. Panel uniformity, viewing angles are great. Response time is small enough for me, I don't see any ghosting or other issues in shooters. Gamma is pretty close to the monitor setting: with setting of 2.2 the real gamma as shown by Lagom's test is 2.10 - 2.15.3. Monitor brightness deserves its own point. This monitor is much brighter than my last one. My room is very well lit during the day, instead of windows I have large glass doors looking out. And sun is lighting the room in the pm. It was too bright for the last monitor, colors looked bleak during sunny days, there were some reflections. Couldn't really view photos or watch movies during this time. This monitor is much brighter, with it I keep brightness at 80% during the day and colors look just as well as in the dark, the brightness of the monitor is on par with the surroundings.4. Quality of the panel is impeccable. Different controls, such as contrast, brightness, gamma and color temperature don't influence one another. I.e. I can change brightness and it doesn't deteriorate contrast, I can change any parameter and it won't affect other parameters badly. Contrast in the whole range 0-50 is ideal (according to monitor tests), regardless of the brightness setting or other settings. I can easily see the difference between colors 0 (black) and 1 / 255, and between 253 / 255 and 255 / 255 (difference between 254 / 255 and 255 / 255 is sometimes hard to see but that may be my eyes). It is really funny now. Different games like to ask to set up the brightness correctly when you first run them. They say "set brightness so that this image is barely visible". What is funny is that I can't do it now. On any brightness level, even at 0, I can see the image is not "barely visible" but _very, very well_ visible.5. Dead pixels. I was worried about them quite a bit before buying the monitor, to the point I tried all local shops first and even one in Australia where they said they would check for pixels first (didn't buy because they said their monitors had dead pixels). Turned out that dead pixels is not a big problem on this kind of monitor (4K). I found I had one dead pixel near the side (to be more exact, 2 dead sub-pixels - red and green ones in one pixel) upon examination, but turned out it is absolutely invisible in anything but uniform color test pictures I used to find them. It's just that these pixels are so small here in 4K resolution, that one dead pixel is really hard to find. Even on the uniform color test picture, I noticed the following. I can see the dead pixel only if Iook _straight at it_. If I look at a point 5 cm left or right of the dead pixel (so that dead pixel is in my peripheral vision) I don't see the dead pixel anymore. It blends in, I see just the uniform color in the place where dead pixel really is. On real-world images, eg. some photos or games or movies, the dead pixel is impossible to find even though I know where it is. So, my conclusion is this: dead pixels are not a big problem with 4K monitors, at least the black ones (not sure about bright ones) and while they are alone.6. I'm not sensitive to IPS glow / backlight bleed issues, so can't report much here. The monitor seems to have a significant amount of IPS glow, doesn't bother me.7. From reading the other customers' reviews, this monitor has an issue where it sometimes (like, once per hour or two) displays a flicker for a split-second and then image returns to normal. Seems to be a firmware issue from what I read. Well, if anyone is worried about it - my monitor also has the issue. For me it's not a problem at all, the flicker is just a momentary blink and it happens just once per a few hours or so. Probably wouldn't notice this if I didn't read about it before.

This is a very good monitor. It has clear, fast video and vibrant, bright color. I loved it until I found that trying to view copy protected video or content in 4K UHD, the best you get is 1080p. I'm not up on the technical reason for it except that it has to do with the HDMI and DP video connectors being outdated. This should have been noted in the description but was not. Even on the Acer website they list that this monitor has these connectors but do not list the versions or disclose that it has these limitations. It is very deceiving. There is an adapter that can be purchased that suggests it can convert to the newer technology but it only works on the HDMI connector. Unfortunately, the HDMI port is limited to 30Hz. I have not tried the adapter so I don't know if it really works. If you want to get 60 Hz and G-sync you must use the DP connector and there is no adapter available for it that I can find. Even though I am disappointed with this limitation, I am keeping this monitor. I rarely view copy protected content and there is much about it that I like. One more minor thing that should be noted. The cables that come with it are too short unless you position the monitor and computer right next to each other.

Big. Beautiful. Colorful. Bright. Super high def. Recommended.I got this after buying another brand's ultra widescreen monitor (3440x1440) and being disappointed. The other brand was a bit dim so I also ordered this Predator 4K monitor and I'm glad I did. The screen is highly superior. Colors are amazing. Picture is clear and super high definition. Nvidia G-Sync keeps things smooth with the 60hz refresh rate.I'm running this with a Geforce Titan X (Maxwell) and playing Crysis 3 on MAX graphics (including full AA) and it's smooth enough to play. So don't listen to people saying you can't play 4K with full graphics. In Destiny 2, max graphics, I'm getting 50-60+ frames.Now, I did just order a new Geforce 1080 Ti (which is even cheaper than the Titan X was) because I will get more than double the frame rate compared to the Titan X Maxwell. But that's only because I wanted even higher frame rates in Crysis 3. (Which should be 50+ on this card.).Bottom line is, you can game with high frame rates in 4K with max settings on a $700-$800 video card (or cheaper if you wait for the right sale).This monitor is massive and immersive because it fills up nearly all your vision. :o) Highly recommended.Do check all the main internet sites before you buy because some are much cheaper than others.