Optoma UHD35STx
#21 in 4KFull review
A short throw 4K gaming projector for small rooms where the projector has to sit close to the screen.
Amazon $1,299$1,299
3.5/5
A bright 3LCD home theater projector with flexible placement, for movie rooms more than fast gaming.
- 3,000 ISO 21118Brightness
- 1920 x 1080 (1080p)Native resolution
- lampLight source
- NoneStreaming
Check price at Amazon$1,629.99
Price checked October 29, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 3LCD shows bright color with no rainbow effect
- Wide zoom and lens shift fit it into most rooms
- Bright enough for a room with some lights on
Cons
- Short lamp life means replacements every few thousand hours
- No built-in streaming, so it needs a stick or console
- Laggier than gaming DLP models and limited to 60 Hz
- Large and heavy at about 15 lb
How it scores
The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Independent measurements
Brightness, input lag and contrast measured by independent reviewers.
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| ProjectorCentral | 2,912 lm | 20.6 ms | - | 2,912 ANSI lumens in Dynamic mode, High power (1,615 Natural Eco, 1,204 Cinema Eco). Lag 20.6 ms at 4K, 28 ms at 1080p. |
Specifications
| Model number | Home Cinema 3800 (V11H959020) |
|---|---|
| Picture | |
| Brightness | 3,000 ISO 21118 |
| Native resolution | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) |
| Display | 3LCD |
| Light source | lamp |
| Light source life | 5,000 hours |
| HDR | HDR10, HLG |
| Dynamic contrast | 100,000:1 |
| Placement | |
| Throw | Standard throw (1.3:1) |
| Largest image | 300 in |
| Autofocus | No |
| Auto keystone | No |
| Obstacle avoidance | No |
| Auto screen fit | No |
| Optical zoom | 1.6x |
| Lens shift | Horizontal and vertical |
| Streaming and gaming | |
| Built-in apps | None |
| Top refresh rate | 60 Hz |
| HDMI ports | 2 |
| Speakers | 20 W |
| Build | |
| Battery | None |
| Fan noise | 35 dB |
| Power | 406 W |
| Dimensions | 16.1 x 13.0 x 6.5 in (W x D x H) |
| Weight | 15.2 lb |
| Warranty | 2 years |
| Released | 2019-10 |
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