Our take
The H31 is a narrow home-video option if a native 16:9 image and conventional throw match the room and low 480p detail is acceptable. Its 850-lumen figure is not identified as ANSI in the saved source, and the projector has no internal speaker.
Casual widescreen viewing when an external source and audio setup are already available.
Avoid it for Full HD detail, a bright large-screen setup, near-wall placement, or a self-contained audio and streaming package.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact-model listing identifies native 854 × 480 WVGA resolution and 16:9 format.
- A 1.65–2.00:1 throw range and 1.2× manual zoom help plan conventional placement.
- The listed 3,000:1 contrast is attributable to the exact-model specification page.
What to weigh up
- Native WVGA is substantially below Full HD detail.
- The listed 850 lumens have no ANSI measurement basis in the reviewed source.
- The model has no internal speaker and the saved facts do not establish built-in streaming.
Specifications and exact model details
The key details
| Model covered | H31 |
|---|---|
| Image format | Native WVGA 854 × 480 DLP, 16:9 |
| Rated light output | 850 lumens listed; ANSI measurement method not established |
| Placement | 1.65–2.00:1 throw, 1.2× manual zoom and focus |
Performance figures are manufacturer claims. Source checked October 16, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Native 480p is the main compromise
ProjectorCentral identifies the H31's native resolution as 854 × 480 WVGA and its image format as 16:9. This widescreen shape can align with video content, but the pixel count is much lower than Full HD, so fine text, game interfaces, and detailed scenes will show less native information. A model that accepts a higher-resolution signal would not become a native Full HD projector. Decide whether the screen size and viewing distance are modest enough for this older resolution before comparing it with models whose sources establish 1920 × 1080.
Do not treat the lumen figure as ANSI
The exact-model sources list 850 lumens, but the reviewed packet does not identify an ANSI measurement method. That makes the number unsuitable for a direct ANSI comparison with models whose sources explicitly state that basis. It is also a model-level figure rather than a reading from an individual lamp. Room light, screen size, and lamp history affect the actual result; use the source wording accurately and seek a live demonstration if output matters. The saved ProjectorCentral page also lists 3,000:1 contrast, which describes a different specification and cannot resolve the brightness method.
Measure its conventional throw
ProjectorCentral gives a 1.65–2.00:1 throw ratio, 1.2× manual zoom and focus, and a 16:9 native image. Those details support a conventional room plan with enough distance between lens and screen. They do not describe an ultra-short-throw design. Measure the lens position for the intended image width before buying a mount, and make sure there is room to focus and access the lamp. Manual zoom offers some flexibility, but it will not compensate for a room whose available distance falls outside the model's range.
Plan for separate sound and video sources
The H31 specification page says there is no internal speaker. That means an external audio system is necessary for sound, and its compatibility should be planned alongside the video device. The saved source does not establish a streaming-app platform, so assume an external video source until the exact unit and package prove otherwise. The review also does not infer specific connectors that are not present in the packet. Check the exact rear panel, remote, and cable bundle, and confirm that the source and audio path can work together without relying on an undocumented port.
Compare with a newer portable path
The XGIMI MoGo Pro+ is a useful contrast when the buyer wants Full HD detail, a documented 300 ANSI lumens, battery operation, Android TV, and built-in speakers; those facts are supported by XGIMI pages. The H31 instead offers an older native WVGA image and conventional lamp-projector placement. Brightness numbers should not be compared directly because the H31's 850-lumen basis is not established as ANSI. If considering a used H31, verify its image, lamp behavior, connectors, remote, and separate audio arrangement rather than assuming a specification page describes the individual unit.
Compare for your needs
The XGIMI MoGo Pro+ documents native Full HD, 300 ANSI lumens, Android TV, a battery, and built-in speakers, but it serves a portable rather than conventional fixed-room setup.
Find the video projector that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Is the H31 a Full HD projector?
No. ProjectorCentral lists native 854 × 480 WVGA resolution in a 16:9 format.
Are its 850 lumens ANSI?
The reviewed exact-model source lists 850 lumens without establishing an ANSI measurement method.
Can the H31 play sound by itself?
The exact-model specification says it has no internal speaker, so plan separate audio for video use.
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.
- ProjectorCentral Optoma H31 model specifications ↗ — checked October 16, 2026.
- ProjectorCentral Optoma H31 exact-model specifications ↗ — checked October 16, 2026.
- Optoma H31 product sheet hosted by ProjectorCentral ↗ — checked October 16, 2026.
The decision
The H31's value as a shortlist candidate depends on accepting native 480p and supplying separate sound. Its conventional throw is documented, while its lumen method and the condition of an individual lamp remain unverified.
Is it the right fit?
Check the exact model and today’s offers on Amazon.