Tech & Audio · PRODUCT REVIEW

Optoma
GT5500 Full HD Ultra-Short-Throw Projector

3500 ANSI UST home projector with no built-in smart apps. A closer look at the benefits, the limitations, and the alternatives.

Buyer Shortlists editorial·Updated
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THE SHORT ANSWER

Our take

Optoma's official GT5500 announcement documents native Full HD 1920 × 1080, 3500 ANSI lumens, a 0.25:1 throw ratio, and a 100-inch image from 30 cm from the wall. It also lists two HDMI inputs and a 16 W built-in speaker. The very close placement suits a fixed home room where the projector can sit near the screen, but the source says an HDMI dongle is needed to add smart functions. This is a display-focused UST model, not a self-contained streaming television, and its exact current condition is not established by the archived announcement.

Consider it for

A fixed home-cinema or gaming room that needs strong ANSI-rated Full HD projection close to a wall and can use an external streamer.

Look elsewhere if

It is not native 4K, a portable battery projector, or a built-in app platform; avoid a fixed installation until the console depth and exact screen geometry are measured.

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Pros & cons

What could work for you, and what to consider before buying.

What works in its favor

  • Optoma specifies native 1920 × 1080 and 3500 ANSI lumens.
  • The 0.25:1 ratio supports a 100-inch image from a stated 30 cm wall position.
  • Two HDMI inputs and a 16 W speaker cover a simple external-source setup.

What to weigh up

  • Smart functions require an external HDMI dongle rather than a built-in streaming platform.
  • UST installation is sensitive to small errors in height, alignment, and cabinet depth.
  • The official release does not establish the lamp hours, package contents, or present condition of a current offer.
Specifications and exact model details

The key details

Published product specifications
Model coveredGT5500
Image format1920 × 1080 native Full HD
Rated light output3500 ANSI lumens
Placement0.25:1 UST; 100-inch image from 30 cm

Performance figures are manufacturer claims. Source checked October 12, 2026. Regional models and included accessories can differ.

Full review: how the features affect your choice

What the features mean for you

Native Full HD is distinct from a 4K headline

Optoma's GT5500 announcement identifies native Full HD resolution at 1920 × 1080. That is useful for home video and gaming when native pixel detail matters, but it is not a native 4K device. Choose a screen and source that suit Full HD rather than interpreting compatibility with a larger input as a higher native panel. Confirm the output mode of any game console or media player, since resolution, refresh rate, and input timing can affect the display chain. The model's native format is documented in the official source and can be compared directly with other Full HD products.

A method-labeled ANSI figure supports comparison

Optoma lists 3500 ANSI lumens for GT5500. This names the ANSI method and is therefore more directly comparable with other projector profiles that also use ANSI. It is not a promise that a used lamp still produces its original rating. Screen size, mode, ambient light, alignment, and lamp hours matter. For a bright living room or a large screen, inspect the specific unit and select the image size based on the actual environment. The source's rated output is a selection fact, not a test result for the projector currently offered.

The 0.25:1 UST lens brings the unit near the screen

Optoma gives the GT5500 a 0.25:1 throw ratio and a specific example of a 100-inch picture from 30 cm from the wall. That can keep the projector close to the screen and reduce ceiling installation needs. It also makes the setup sensitive: small changes in cabinet distance or vertical position can shift the image significantly. Measure from the correct reference point, follow the installation diagram, and leave room for ventilation and cables. Do not treat the example as a universal wall gap for all screen sizes or furniture designs.

Bring a separate smart source for streaming

Optoma states that adding an HDMI dongle such as a streaming stick supplies smart-display functions. That is different from a projector with an integrated app platform. A buyer can choose their preferred external source, but should verify HDMI access, network support, remote control, and audio behavior for that device. The official GT5500 page also lists two HDMI inputs, making it possible to connect more than one source without repeatedly moving a cable. Check whether the current offer includes a dongle; the historical title and official announcement do not establish the package.

Home gaming and sound still depend on the exact room

Optoma positions GT5500 for home entertainment and gaming and lists a 16 W built-in speaker. That can reduce the number of separate components for basic viewing, though a larger theater may benefit from external audio. The source discusses low-latency gaming, but this entry does not assign a latency number without a specific verified mode and timing statement. Check the console's output and the actual projector's input behavior. For used equipment, verify lamp hours, image uniformity, focus, remote, ports, and UST alignment; a clean model description cannot establish the condition of a particular unit.

Compare for your needs

For a built-in Android TV route and native Full HD in a portable body, compare BenQ GS50, although its ANSI output is much lower and battery use is unconfirmed. For an LG UST laser model with webOS, compare HU85LA, keeping its regional resolution and brightness conflicts unresolved.

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Before you buy

Is GT5500 native 4K?

No. Optoma's release specifies native Full HD 1920 × 1080.

How close can GT5500 sit to the wall?

Optoma gives a 100-inch image example from 30 cm and a 0.25:1 ratio. Use the model's setup chart for the exact size and measurement point.

Does GT5500 include streaming apps?

Optoma says an HDMI dongle is needed to add smart functions. Confirm the external device and package on the exact offer.

Where can I check the current price?

Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.

Sources and review basis

Sources & review basis

We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.

Read our research and update process →

The decision

GT5500 is a strong candidate for a measured fixed-room UST setup when ANSI-rated Full HD matters and an external streamer is acceptable.

Is it the right fit?

Check the exact model and today’s offers on Amazon.

As an Amazon Associate I earn from qualifying purchases.