Optoma EH401: Specs, Throw Distance & Alternatives
A bright 1080p DLP lamp projector. Optoma rates it at 4,000 lumens and publishes 8.4 ms input lag at 1080p/120 and 16 ms at 1080p/60. It is native 1080p (it accepts a 4K signal but does not display 4K) and has no smart TV system, built-in wireless or lens shift.
Is the Optoma EH401 right for you?
Good for
- Fast gaming at 1080p/120: Optoma rates lag at 8.4 ms
- Console gaming at 1080p/60 (rated 16 ms)
- Rooms with some light: 4,000 lumens rated
- Accepts 4K signals (shown at 1080p) and is listed as HDR compatible
What to plan for
- Native 1080p: 4K sources are shown at 1080p
- No built-in streaming or wireless (Optoma lists QuickCast Pro as an optional accessory): add a streaming stick
- Only one HDMI port is HDMI 2.0; the other is HDMI 1.4a, and no ARC is listed
- No lens shift, a 1.1x zoom and vertical keystone only
- Lamp rated for 4,000 hours in Bright mode (10,000 in Eco, 15,000 in Dynamic, per Optoma)
Based on manufacturer specifications and published reviews (sources below). We don't do hands-on testing.
Optoma EH401 specs
| Resolution | 1080p (1920 × 1080 native; accepts 4K input) |
|---|---|
| Brightness | 4,000 lumens (Optoma rating; ProjectorCentral lists it as ISO) |
| Display technology | DLP |
| Light source | Lamp (240 W) |
| Lamp life (Bright mode) | 4,000 hours |
| Contrast ratio | 22,000:1 (Optoma rating) |
| Throw ratio | 1.50-1.66:1 |
| Lens shift | None |
| Max refresh rate | 120 Hz |
| HDMI ports | 2 (one HDMI 2.0, one HDMI 1.4a) |
| Speakers | 3 W |
| Weight | 6.35 lb |
How far from the screen?
Lens-to-screen distance for a 16:9 image, calculated from its 1.50-1.66:1 throw ratio. The zoom lets you place it anywhere in the range.
| Screen | Closest | Farthest |
|---|---|---|
| 80″ | 8' 9" | 9' 8" |
| 100″ | 10' 11" | 12' 1" |
| 120″ | 13' 1" | 14' 6" |
| 150″ | 16' 4" | 18' 1" |
Optoma EH401 input lag by mode
| Signal | Input lag |
|---|---|
| 1080p / 120 Hz | 8.4 ms |
| 1080p / 60 Hz | 16 ms |
Source: Optoma’s published ratings; we found no independent measurement. Its fastest figure (8.4 ms at 1080p / 120 Hz) is quicker than 62 of the 96 projectors with a lag figure in our input lag database, which lists each model's fastest mode.
Optoma EH401 alternatives at a similar price
In-stock 1080p projectors priced closest to it on Amazon today.
| Model | Price today | Amazon rating | Compare |
|---|---|---|---|
| Optoma EH401 (this one) | $699 | 5.0★ | — |
| BenQ TH575i 1080p Home Projector | $649 | — | — |
| ViewSonic PA503HD 4000 Lumens High Brightness Projector with | $640 | 4.1★ | Head-to-head |
| Optoma HD30LV 1080p Full HD Home Projector | $629 | 4.3★ | — |
| Optoma HD146X 1080P Full HD Vibrant Home Theater Projector | $599 | 4.3★ | — |
Optoma EH401 head-to-head comparisons
- Optoma EH401 vs ViewSonic PA503HD
High-brightness 1080p duel: Optoma EH401 vs ViewSonic PA503HD
Where it fits
Optoma EH401 FAQ
- How far from the screen should the Optoma EH401 be for a 100-inch image?
- Between 10' 11" and 12' 1" from lens to screen, depending on the zoom setting (throw ratio 1.50-1.66:1).
- What is the input lag of the Optoma EH401?
- 1080p / 120 Hz: 8.4 ms; 1080p / 60 Hz: 16 ms. Source: Optoma’s published ratings; we found no independent measurement.
- Does the Optoma EH401 have lens shift?
- No. It has no lens shift and a 1.1x manual zoom, so the image position is set by where the projector sits.
Sources
Price, stock and rating come from Amazon and update automatically (last checked Nov 14, 2026, 8:00 PM).
Disclosure: As an Amazon Associate we earn from qualifying purchases. We also participate in the eBay Partner Network. We may earn a commission when you click through an affiliate link and make a purchase, at no extra cost to you. Prices and availability shown are accurate as of the time posted but are subject to change. Any price and availability information displayed at the time of purchase will apply.