Our take
The HD28HDR is a conventional-throw, lamp-based home projector with native Full HD imaging. Optoma documents 3,600 lumens but does not label that figure ANSI, so it should retain that qualification in comparisons. Its 1.47–1.62:1 throw range, 1.1× manual zoom, HDMI inputs, and 5 W speaker describe a practical external-source setup. 4K and HDR input support, along with the manufacturer's 120 Hz and response-time claims, do not make the native image 4K or turn those figures into independent test results.
Home viewing with an external source when the room can accommodate a conventional throw distance.
Skip it if you need ultra-short throw, integrated streaming apps, a laser light source, native 4K imaging, or a documented ANSI-lumen rating.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Optoma specifies native 1920 × 1080 DLP imaging rather than relying on input-format wording.
- The 1.47–1.62:1 throw range and 1.1× manual zoom help plan a conventional room installation.
- HDMI connections and the built-in 5 W speaker support an external-source setup.
What to weigh up
- The 3,600-lumen claim is not labeled ANSI and should not be normalized to that basis.
- A lamp projector requires AC power and eventual lamp maintenance; used lamp hours are unknown.
- Optoma marks the model discontinued, and app support is not documented.
The key details
| Model covered | HD28HDR |
|---|---|
| Image format | 1920 × 1080 native DLP |
| Rated light output | 3,600 lumens; Optoma does not label the figure ANSI |
| Placement | 1.47–1.62:1 conventional throw; 1.1× manual zoom |
Performance figures are manufacturer claims. Source checked October 7, 2026. Regional models and included accessories can differ.
What the features mean for you
Treat 4K input support separately from native pixels
Optoma specifies a native 1920 × 1080 DLP image for the HD28HDR. The product page's 4K input and HDR compatibility describe signals it can accept and process, not a native 4K imaging device. This distinction matters when comparing small details, computer text, and 4K source material. Full HD can still be a sensible fit for many home screens, especially when the seating distance and image size are moderate, but buyers requiring native 4K should shortlist a different class. Use the native resolution as the stable comparison point and do not turn signal compatibility into a panel specification.
Preserve the manufacturer's brightness wording
Optoma lists 3,600 lumens for the HD28HDR, but the reviewed source does not label that figure ANSI. The matching attribute therefore remains unknown rather than treating the number as an ANSI equivalent. This is useful when comparing it with models whose manufacturers clearly specify ANSI measurements: those figures have a stated basis while this one does not. Room light, screen size, lamp mode, and the condition of an older lamp all affect the picture from an individual unit. Treat the number as Optoma's own published claim with its original wording, then plan the room and inspect the particular projector rather than predicting brightness from the number alone.
Measure the throw before selecting a shelf or mount
The official sheet gives a 1.47–1.62:1 throw ratio and 1.1× manual zoom. That is conventional placement: the projector must sit back from the screen, and the zoom range offers some flexibility but does not replace measuring the lens position. Decide on image width, use Optoma's distance guidance, and account for mount offset and the room's physical obstructions. The ratio is not an ultra-short-throw specification. If the projector must sit immediately by the wall or in front of a screen cabinet, this lens geometry is a poor starting point; a documented UST design should be compared instead.
Choose an external source and plan audio separately
Optoma documents HDMI, USB power, and an integrated 5 W speaker. Those connections make an external player, laptop, console, or streaming device the straightforward way to supply content. The source materials do not establish an integrated streaming-app platform, so app availability and protected playback depend on the connected device and service. The speaker is convenient for a simple session, while a larger room may call for separate audio equipment. Confirm that the source offers a compatible output and that the cable reaches the projector before finalizing a mount or media cabinet layout.
Read refresh and response claims as specifications
Optoma advertises 1080p at 120 Hz and an 8.4 ms response-time claim for the HD28HDR. These are manufacturer specifications rather than measurements made for this review. They may help a buyer compare source and gaming requirements, but they do not establish how a particular console, cable, image mode, or unit will behave. The native image remains Full HD, and different inputs or settings can affect what is available. If low-latency gaming matters, check the supported signal mode in the exact manual and verify operation with the intended source rather than treating the headline number as a guarantee.
Account for the lamp and discontinued status
Optoma identifies a lamp light source and lists the model as discontinued. A lamp design brings eventual maintenance, and the original factory brightness cannot describe a used lamp's current output. Ask for operating hours, check that the image focuses evenly, and confirm that the remote, power cable, and correct lamp are present if they matter to your setup. The archived candidate's historical ASIN does not prove a current offer or its condition. This is a fit judgment from model documentation, not a claim that a particular unit is available or working.
What else to compare
For a documented 300-ANSI home model with built-in Android TV, compare the ETOE D2 Pro; for a native 4K requirement, compare models whose native imaging device is documented.
Before you buy
Is the HD28HDR a native 4K projector?
No. Optoma specifies native 1920 × 1080 DLP imaging; 4K/HDR input compatibility does not change native resolution.
Are its 3,600 lumens ANSI lumens?
The reviewed Optoma source does not label the 3,600-lumen figure ANSI, so this guide does not assign a comparable ANSI rating.
Does it include streaming apps?
The official specifications document video inputs and USB power, not a built-in streaming-app platform.
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 HD28HDR product page and official specification sheet ↗ — checked October 7, 2026.
- Optoma HD28HDR product page ↗ — checked October 7, 2026.
- Optoma HD28HDR official specification sheet ↗ — checked October 7, 2026.
The decision
The HD28HDR fits a measured conventional room where native Full HD and an external source are enough. Keep its unqualified lumen figure separate from ANSI ratings and inspect the lamp in any used example.
Is it the right fit?
Check the exact model and today’s offers on Amazon.