ViewSonic PX749-4K
#10 in 4KFull review
A bright, low-lag 4K gaming projector for console and PC players who already have a streaming device.
Amazon $1,180$1,180
4.2/5
A low-lag laser 4K projector for gamers who want years of use without lamp replacements and already have a streaming device.
- 3,500 ANSIBrightness
- 1920 x 1080 (1080p)Native resolution
- laserLight source
- NoneStreaming
- 4.2 msInput lag
Check price at Amazon$1,238.77
Price checked October 29, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Laser light source lasts for years with no lamp swaps
- Very low lag at 1080p/240 and 1440p/120 for fast games
- Zoom and a little vertical lens shift ease placement
- Three-year warranty
Cons
- No built-in streaming, so it needs a stick or console
- Measured contrast is modest, so dark scenes look gray
- Light source is covered for only one year
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 | 3,091 lm | 5 ms | 1,318:1 | 3,091 ANSI lumens in Bright mode (2,190 calibrated User mode, 2,164 Gaming). Lag 5 ms at 1080p/240, 9 ms at 1080p/120, 18 ms at 4K/60 with Ultra-Fast Input. |
Specifications
| Model number | LX700-4K |
|---|---|
| Picture | |
| Brightness | 3,500 ANSI |
| Native resolution | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) |
| Display | DLP |
| Light source | laser |
| Light source life | 30,000 hours |
| HDR | HDR10, HLG |
| Dynamic contrast | 3,000,000:1 |
| Placement | |
| Throw | Standard throw (1.1:1) |
| Largest image | 300 in |
| Autofocus | No |
| Auto keystone | No |
| Obstacle avoidance | No |
| Auto screen fit | No |
| Optical zoom | 1.4x |
| Lens shift | Vertical |
| Streaming and gaming | |
| Built-in apps | None |
| Input lag | 4.2 ms |
| Top refresh rate | 240 Hz |
| HDMI ports | 2 |
| eARC | No |
| Speakers | 15 W |
| Build | |
| Battery | None |
| Fan noise | 31 dB |
| Power | 180 W |
| Dimensions | 11.3 x 8.5 x 5.0 in (W x D x H) |
| Weight | 7.3 lb |
| Warranty | 3 years |
| Released | 2024-04 |
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