GT2100HDR Compact Short Throw Laser Home Theater and Gaming Projector, 1080p HD with 4K HDR Input, Bright 4,200 Lumens for Day and Night Viewing

Who'd a thunk researching for a projector would be so daunting. The prices range from under $100 to like $10,000. I chose to look for the best projector that I could find under $2,000 which helped speed up my research. The GT2100HDR has a footprint smaller than a letter size sheet of paper. At 6.6lbs it's lighter than the GT1080, GT1090 class of Optoma projectors which I think this line of GT2000HDR & GT2100HDR replaces. I timed my purchase for Black Friday sales in 2023. Through Black Friday they dropped the price from $1799.00 to$1,399.00. The GT2100HDR is a laser projector for under $1,500 using only 173 watts which makes for a cooler machine since projectors can get quite hot. At 4200 ANSI lumens it's almost as bright and clear as the images casted from my smaller 17" MSI gaming laptop with the lights off. The GT2100HDR is plenty bright in ambient light. Best Buy floor models were dim and grainy in ambient light and their projectors were huge and clunky in comparison. The GT2100HDR is the most recent up to date projector from Optoma being on the market less than a year now. My GT2100HDR is one important component of my garage Golf simulator. If I turn it on it usually doesn't get turned off till 12 hrs later. And presently its floor mounted in a case I built out of 3/8" plywood. With any projector you get will require YouTube to help with little things here and there. One YouTuber explains how to fill the entire screen no black out top and bottom merely by changes in ur RTX3060 video card settings for example. Other things like Dynamic Contrast 300,000:1, 1080p w/4K support, 10bit color processing, laser phosphorus life 30,000 hrs, 3D mode, aspect ratio 16:9, keystone correction, 2.0 HDMI inputs, 173 watts, smaller footprint blows any non laser projector out of the water. And now what's wrong with it. I don't know if anybody else would be bothered by this but? The GT2100HDR looks like several other Optoma models share the same small foot print housing. There is no where mentioned that my unit is a GT2100HDR on the unit itself. The only place Optoma has the model number is on the box that it came out of. So I took a picture of the label and taped it to the bottom. My concern is if I'm in need of support whether not identifying the model # on the unit itself could get messy. The manual can be obtained on line at the Optoma support site of some 100 pages that I printed out. But I'm still not understanding how the digital shift corrections really work. And the remote that it comes with takes a bit getting use to because Optoma encrypts (being sarcastic) the images on the buttons and its hard to tell which side is up. So you'll need the manual to explain the obvious. Overall I'm very pleased with the GT2100 I worry about the heat cus when I turn it on it stays on for the whole day and thru the night. My research for a projector had me going to Discount Golf to check out their Golf simulator setups. They run their golf simulator all day so what am I worried about?

This is a great option when you have limited space to project a large screen.

I needed a short throw projector for business purposes where our conference table was 5' away from a 10' wide conference room wall, and the room is about 50' long. The room is lit, but not bright, like walking into Starbucks. The brightness is very good and the projector is configured to use a level down in brightness (80%?) to improve the laser light source longevity and color. You can view a spreadsheet reasonably well from the back of the room if Excel is zoomed to about 150% (est 18pt font equivalent). I bought a $60 foam pick case from HarborFreight to carry the projector, ac adapter, cables, and a speakerphone puck. The projector would be improved if it - supported network casting - had a 2X zoom - had horizontal keystone correction - was smaller like the Dangbei Atom - cheaper (ouch!) At the time of the purchase, there weren't many affordable, short throw projectors available. The Optima isn't perfect, but meets my basic requirements satisfactorily. I would buy it again. 18 month update: Everything still working fine. Tariffs added $250 (20%) to the price. Ouch!

Very nice. Bright and works perfect.

Purchased the Optoma GTR2100 as the price was appealing. Unfortunately upon unboxing and setup, this projector is not even remotely close to 4,200 lumens as advertised. I returned immediately after set up. I have a 900 ANSI lumen projector I bought off Amazon for ~$200 and it's just as bright as this Optoma GTR2100. I do not recommend.

Sharp and bright picture for the money. Minimal rainbowing, but that's expected for the price and size

It worked great looked great for a little over a year with me using it 1 a week max. For a weekly event that last 2 hrs. I bought it in September 2024 and it's December 2025 and it stopped working today. I plugged in the power supply and I smelled something burning. It was coming out of the projector vent. Now Red LED power indicator turns to blue but projector does not come on. Just missed my warranty expiration. In addition says it's 4k but it does not project 4k. It just supports 4k images coming thru the HDMI input. It does 1080dp. Speaker is absolutely worthless. You will need an external audio source. I'm bummed this happened is all. Not hating on the projector or the manufacturer but I paid $1500 for about 50 uses of it. Lookingfor a new one. Not buying Optoma again

Perfect Projector for your home golf simulator