Our take
The PT105 is a specialist pocket projector for buyers who value a small LED DLP body and can accept very low light output. Optoma's product sheet gives a 75-ANSI-lumen rating and native WVGA resolution. Those specifications point toward a small image in darkness, not a general classroom, bright living room, or large-screen recommendation.
Small personal viewing in a very dark room when portability is the main constraint.
Avoid it for room lights, large groups, detailed slides, native HD, or anyone expecting a used unit to retain its original light output without inspection.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Optoma documents native 854 × 480 WVGA in a 16:9 DLP design.
- The manufacturer sheet lists 75 ANSI lumens and an LED light source.
- HDMI, VGA, and composite inputs cover a small set of external sources.
What to weigh up
- The 75-ANSI-lumen rating sharply limits useful image size and room lighting.
- WVGA resolution is low for text, modern interfaces, and high-detail video.
- The model is discontinued, and the historical ASIN and current package are unverified.
The key details
| Model covered | PT105 |
|---|---|
| Image format | 16:9 WVGA, 854 × 480, DLP |
| Rated light output | 75 ANSI lumens, Optoma model sheet |
| Placement | Pocket chassis; HDMI, VGA, and composite inputs |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
Portability comes with strict image limits
Optoma's model sheet describes a 1.9-pound pocket projector with a single-chip DLP engine and LED illumination. Its size makes moving it between a shelf, bag, and temporary setup easier than installing a lamp-based meeting projector. But size is not a substitute for brightness. The small body and low output mean the realistic use case is a modest image in a dark room. If several people need to read detailed slides or if the image must compete with room light, choose a larger model with stronger documented output instead.
Read native resolution and supported sources separately
The PT105's native image is 854 × 480 WVGA with a 16:9 shape. An HDMI source can carry video formats beyond that panel, but input compatibility does not increase the projector's native detail. This makes the PT105 a poor choice for spreadsheets, captions, and interface text that must remain legible at a distance. The native-pixel specification matters more than a source device's output setting. For basic video where portability matters more than detail, the format may be acceptable if the image stays small.
Treat 75 ANSI lumens as the model ceiling reference
Optoma's specification sheet lists 75 ANSI lumens. This is an explicit manufacturer comparison value, but it remains a rating for the model rather than a current measurement of a particular used projector. At that level, darkness and modest screen size are central requirements. Do not expect ordinary living-room lights or daylight to leave the image clear. Check the light source and image on the exact unit, and compare its visible output with the intended room before purchase. A historic ANSI number is not evidence that an old device has retained its rated performance.
Confirm source and audio requirements
Optoma lists HDMI, VGA, and composite video inputs, with a small 1.5 W speaker. Those connections can support a laptop or older video source, but do not establish an integrated streaming service or current phone-mirroring compatibility. Plan an external source and, if sound matters, an external audio solution. The saved sources do not establish a built-in rechargeable battery, so pocket size should not be confused with cordless operation. Verify the power adapter, remote, cables, connectors, and input response on the individual unit.
Check the discontinued unit and exact listing
ProjectorCentral records the PT105 as discontinued. The historical B005MXK1ZY ASIN is not verified as a current exact Amazon offer, and the sources do not establish the contents of a present listing. Ask to see the PT105 label, test focus and every needed port, and check the LED's condition and image uniformity. If battery-powered viewing is essential, Kodak RODPJC100W has a documented rechargeable battery but uses a different, non-ANSI brightness listing. This comparison is about specified features only; no unit was personally tested.
What else to compare
Kodak RODPJC100W is another pocket model with a documented internal battery, though its 100-lumen entry is not ANSI-labeled. AAXA P6X offers WXGA detail and a battery but also has non-ANSI brightness claims.
Before you buy
Can the PT105 make a bright classroom image?
Optoma rates it at 75 ANSI lumens, so the documented output is intended for very dark, modest-size viewing.
Does an HDMI input make it a native 1080p projector?
No. Its native image is 854 × 480 WVGA, regardless of a higher-resolution input signal.
Does pocket size mean that it has a built-in battery?
The saved PT105 sources do not establish a rechargeable battery. Confirm its power needs on the exact unit.
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 & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Optoma PT105 manual and product specification sheet ↗ — checked October 4, 2026.
- Optoma PT105 user manual ↗ — checked October 4, 2026.
- Optoma PT105 product specification sheet ↗ — checked October 4, 2026.
- ProjectorCentral model and discontinuation record ↗ — checked October 4, 2026.
The decision
The PT105 is a narrow dark-room pocket option, with 75 ANSI lumens and WVGA detail setting firm limits on its use.
Is it the right fit?
Check the exact model and today’s offers on Amazon.