ViewSonic PX749-4K UHD 4K Gaming Projector Designed for Xbox with 4.2ms Response Time, 4000 ANSI Lumens, H/V Keystone, 1.3x Optical Zoom, and USB C for Home Theater

I wanted to add a review for using this as a computer monitor in case others were thinking of the same.The unit is very bright. I don't have to close my windows if I'm looking at high contrast things like text. Color isn't maybe as good as more expensive projectors, but I found it to be fine. I found that using 1080p resolution for desktop use was better than 4k as the pixels are a bit fuzzy at that resolution which makes text not look as good. This is due to the pixel shifting tech used (any 4k projector sub $1600-2000 will use this). The screen is very detailed at 4k showing movies and games, however, and the pixel shifting kind of adds a bit of an anti-aliasing effect. I dare say I might actually prefer a pixel shifting projector for computer use as it lets you decide between 4k 60hz and 240hz 1080p with both modes having their own strengths. I feel I have two monitors I like for different reasons which is cool. There is just a slight perceptible lag on 4k, but its really not bad. I don't notice any at 1080p 240hz. And it really does go that high, the difference between 120 and 240hz is noticeable, and it looks really good at the high refresh rate. I actually prefer it over my 144hz 1440p monitor. I don't think this would be good enough for esports compared to a 240hz monitor, but its very close. Remember to use the game mode.Overall it works better than I expected as a computer monitor and I'm happy with it and feel it was a good value for the money.Other thoughts-I wish the power plug was longer. I'm not going to install this in ceiling, and I had to use an extension cord for it to reach down to a plug that is only a few feet horizontally away.-The remote is a bit old fashioned looking. Not a big deal to me but I think ViewSonic should update the design.-Sometimes the unit makes a strange whirling sound that is annoying. Usually it doesn't and it has done it less as I have used it. Its not the fan, it sounds like something is spinning that is not lubricated. When this isn't happening I found the fan noise to be fairly low and constant.-Its very easy to switch between modes like normal and eco, needing only one button to be hit. This is really nice since the bulb has a lifespan. If I know I'm going to step away from the computer for a few minutes or am going to just be looking at text I can switch it to super eco in two seconds.-SuperEco at 240hz flickers, changing to a different refresh rate fixes this.Some tips:-Dynamic Eco is basically as good as normal in terms of color and brightness at least when its showing a bright image. That's my main setting. I think it just dims when the screen is dark. It is better than eco (but not super eco) in terms of bulb life according to the manual.-Make sure your resolution is 1920 by 1080 if you want 240hz. If its 1920 by 1200 if will default to 120hz.-if the projector is located above you, make sure you turn the projector upside down. It will need next to no keystone correction that way which keeps the image at native.

First things first, because there is no mention anywhere of 3D support in the specs or product description there are a lot of comments out there stating that the PX701-4K isn’t capable of 3D. This is incorrect. It does in fact support 3D and it looks great! The older versions that were initially shipped did not support 3D. However, since then ViewSonic has made the necessary hardware & firmware upgrades to correct this. Now that the 3D speculation is out of the way let me talk about the projector. It’s a great 4K projector considering the price tag. True, it’s not native 4K but it does produce 3840x2160 pixels when inputting a 4K signal into the projector. The projector does this. by what’s called “Pixel Shifting “. This is done to expand the native 1080p resolution to produce an effective 4K image on the screen. So, basically, you’re still getting 4K resolution without the much higher price tag you would pay for a native 4K projector. When you play 4K content the projector also displays 3840x2160 on it’s display on the screen. Another nice thing is that it supports HDR & HLG. However, it does not support Dolby Vision which is not a dealbreaker for me. The 3200 ANSI lumens produce a nice bright and vivid picture. I also really like the auto keystone feature. I have the projector sitting on a coffee table which is much lower than my screen and I didn’t have to adjust anything. The projector automatically adjusted the image perfectly. The fan is pretty quiet as well and If you have a surround system you won’t hear it at all. I haven’t tried gaming on it yet but if the specs are correct this should be great for gaming too! Overall I’m satisfied with the projector.

I've had this for about a month now. I've installed many projectors and have some experience here.Overall it's a good projector, the throw distance was perfect for what I needed.Projecting onto a 110" screen from about 10' away. - Hanging from ceiling.I'm using this for daily use. Audio for my setup goes to a soundbar from the 3.5mm jack for normal viewing. When I turn on the receiver, it interrupts the audio from the HDMI and the audio only comes from the surround speakers at that point. Works well and sounds great when needed.Pros:Excellent throw distance for small rooms. - Very forgiving throw distances. - For my screen size, anywhere from 108"-140" throw distance will work for 110" screen.Plenty bright - However it is not powerful enough to overcome the room lights I have. You still want to use this in a space you have good control over the light.It's 4KIt's 3D - Yes, this works well, but I did find myself inverting the images on a couple movies. - Used DLP Active shutter glasses. - https://www.amazon.com/gp/product/B08C9SWQKMIt's small - This is good because I have a low ceiling where this is installed and need people to be able to walk under it.Cons:Can't get this to power up or down with the Xfinity remote (Volume does work after trying a dozen codes). - Still working on a remote config for my system.No optical out. (Would be nice to have for added connection flexibility.)When viewing in 3D, it puts the lamp from Eco mode, back to "normal", and does not put it back when 3D viewing is over. This is the highest brightness setting and uses up lamp hours quicker. - Use one of the Eco modes for longer lamp life.Adjusting the screen is a little cumbersome, but doable. Focus and zoom are stiff, making it hard to really fine tune it.Fans can be a bit loud. They are worse when lamp is set to "Normal".Overall, not bad.The price point for being a 4K projector is good. It's far from perfect, but given the cost and what it can do, I'm happy with it so far.