Product Comparison: Optoma GT750ST vs Optoma ML750ST

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General Specifications
About the Product
Enjoy gaming, vibrant movies and videos on a palm-size projector with the power and performance of a full-size with the Optoma GT750ST. Engineered for gamers, movie watchers and power users on-the-go, the short throw lens delivers stunning big-picture 720p HD video anywhere and anytime.
The ultra-compact Optoma ML750ST short-throw LED projector delivers an ultra-bright image for road warriors and power-users. The ML750ST packs the power and performance of a full sized projector in the palm of your hand.
Key Specs
Projection Technology
Image Resolution
1280 x 800 pixels
1280x800 pixels
Contrast Ratio
20000 :1
20000 :1
700 lumens
800 lumens
What customers say about "Key Specs"
Optoma GT750ST Short Throw Gaming Projector
  • Good projector, especially for the size. It is definitely affected by light, so don't expect a great picture in a bright room. Does really well in absolute darkness.
  • I absolutely love this projector, it is super bright and can be seen clearly in a completely lit room and it is super clear, best investment I've made so far as a deployed soldier, I can't wait to get home and use this for movie night at home.
  • Optoma resolution is just great, so happy with it.
  • Plenty bright even for daytime use. Resolution and focus are good enough.
  • The only downside is a little bit of a rainbow artifact every now and then on high contrast scenes.
Optoma ML750ST Ultra-Compact Projector
  • It's a great projector, lumens is perfect even in lighted areas
  • I have it installed in my home theater which has a 120" screne, the colors are bright and crisp and contrast is great
  • The DLP factor makes the difference, I trust Optoma since my lcd projector a Optoma 1691 model is also a very good projector. The reason that I switched to the ML 500 was for its led capability which extends lamp life for years to come.
  • It's got great resolution, not just 640/480, like many of it's competitors
  • Had to return this, wasn't as bright as I was hoping it would be.
  • The 1080P is not native, keep that in mind when trying to switch something to 1080p Blurry as heck at 10ft in 1080p. 720p is more accurate. at 5-8 feet it's pretty crisp.
Size & Weight
4.1 in.
1.5 in.
4.4 in.
4.1 in.
1.6 in.
4.2 in.
12.8 oz.
14.1 oz.
Aspect Ratio
16:10 Native, 16:9 and 4:3 Compatible
Min. Image Size Output
16 in.
25 in.
Max. Image Size Output
135 in.
200 in.
Min. Projection Distance
1.41 in.
1.4 in.
Max. Projection Distance
11.29 in.
11.3 in.
What customers say about "Display"
Optoma GT750ST Short Throw Gaming Projector
  • The picture is bright enough for a room with windows at about 80" projected on a wall.
  • In a darkened room? It's awesome. Aim it at a wall and you have 80-120" of projected happiness.
  • Amazing picture quality for the tiny size of this projector ... recommended for any road warrior that likes big screen real estate.
  • Great little compact projector . Nice picture and easy to use.
  • Wow I like the picture quality it but little costly and fan is bit noisy at full brightness, eco mode no noise.
Optoma ML750ST Ultra-Compact Projector
  • Great projector. Small and lightweight. Throws a very large image from a short distance.
  • Nice, small, portable. Extraordinarily short throw distance.
  • Being a projector focused on mobile use having horizontal keystoning and a zoom function would be ideal so it can be placed in almost any environment.
  • ML550 is not good if you need the display focused evenly which is not a big deal for movies.
  • No zoom functionality is lacking
Lamp Life
20000 hours
20000 hours
HDMI MHL v2.0, Universal I/O – VGA, MicroSD, USB-A reader/wireless
HDMI/MHL, Universal I/O, USB, MicroSD, 3.5mm audio
MHL Connectivity, Short Throw Projection, Wireless Presenting, Built-in 1.5 GB flash memory
Mobile LED Gaming, Carry Bag, Quick Start Card
What customers say about "Features"
Optoma GT750ST Short Throw Gaming Projector
  • Colors are great, audio is ok, fan has a bit of noise, but easy to ignore.
  • In Cinema and Photo modes, the fan is much quieter and tolerable without much visible loss of brightness.
  • It's actually a lot smaller than the stock photo makes it seem. The lense does not stick out that much and it packages up nicely.
  • The projector is really compact and provides bright images. Really good to watch movies. Having connected a Chromecast to it, helps to play games connected from mobile devices.
  • The fan is really loud in Bright and PC modes.
Optoma ML750ST Ultra-Compact Projector
  • HDMI works and has been great for watching movies and playing XBOXONE.
  • The comfort of having an LED light source with a 20,000 hour lamp life makes this a joy to own and use without any anxiety of trying to limit it's uses or worry about buying an expensive replacement bulb
  • The USB port is powered, so I have been using a set of USB speakers.
  • I needed a projector that was small, HD, USB, and had audio out from the projector
  • Works fine however I would have liked for the audio jack to be directly on the projector and not a connection off the VGA cable.
  • The image is great, but there is a big problem, the audio is terrible and there is no audio output for external speakers/headphones whatsoever.
  • The LED bulb that was supposed to last 20,000 hours went very dim at just under 2,000 hours
Warranty / Certifications
Manufacturer Warranty
1 year(s)
2 year(s)
Other Information

Price History

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