BenQ X3100i
#1 in 4KFull review
A bright LED 4K gaming projector with streaming in the box, for gamers who want low lag and no lamp to replace.
Amazon $1,799$1,799
The BenQ X3100i is the better projector overall, rated 4.7 to 4.2. The BenQ X3100i leads on streaming and setup. The ViewSonic LX700-4K wins on value. The ViewSonic LX700-4K costs $560.23 less ($1,238.77 vs $1,799).
ViewSonic LX700-4K
#12 in 4KFull review
A low-lag laser 4K projector for gamers who want years of use without lamp replacements and already have a streaming device.
Amazon $1,238.77$1,238.77
Prices were last checked October 29, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the BenQ X3100i for streaming (Android TV with licensed Netflix vs no built-in apps; needs a streaming stick) and setup (Auto keystone, 1.3x zoom, lens shift vs 1.4x zoom, lens shift).
- Choose the ViewSonic LX700-4K for value ($0.35 per lumen vs $0.55 per lumen).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 4K projector; a clear win is highlighted. How we rank explains each one.
| Factor weight | BenQ X3100i | ViewSonic LX700-4K |
|---|---|---|
| Overall rating | 4.7/5 | 4.2/5 |
| Brightness 25% | 91 3,300 ANSI lumens | 94 3,500 ANSI lumens |
| Value 15% | 86 $0.55 per lumen | 97 $0.35 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 100 Android TV with licensed Netflix | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 70 Auto keystone, 1.3x zoom, lens shift | 40 1.4x zoom, lens shift |
| Light life 10% | 100 30,000 hour LED | 100 30,000 hour laser |
| Gaming 10% | 100 4.2 ms input lag | 100 4.2 ms input lag |
| Warranty 5% | 100 3-year warranty | 100 3-year warranty |
Independent measurements
BenQ X3100i
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| ProjectorCentral | 2,949 lm | 5 ms | - | 2,949 ANSI lumens in Bright mode with video-level white (3,361 with full-white signal); 1,199 in calibrated User mode, Eco. Lag 5 ms at 1080p/240, 9 ms at 1080p/120, 17 ms at 4K/60 in FPS mode. |
ViewSonic LX700-4K
| 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
| BenQ X3100i | ViewSonic LX700-4K | |
|---|---|---|
| Picture | ||
| Brightness | 3,300 ANSI | 3,500 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 4K (pixel shift from 1920x1080) |
| Display | DLP | DLP |
| Light source | LED | laser |
| Light source life | 30,000 hours | 30,000 hours |
| HDR | HDR10 | HDR10, HLG |
| Color gamut | 100% DCI-P3 | - |
| Dynamic contrast | 600,000:1 | 3,000,000:1 |
| Placement | ||
| Throw | Standard throw (1.1:1) | Standard throw (1.1:1) |
| Largest image | 300 in | 300 in |
| Autofocus | No | No |
| Auto keystone | Yes | No |
| Obstacle avoidance | No | No |
| Auto screen fit | No | No |
| Optical zoom | 1.3x | 1.4x |
| Lens shift | Vertical | Vertical |
| Streaming and gaming | ||
| Built-in apps | Android TV, licensed Netflix | None |
| Input lag | 4.2 ms | 4.2 ms |
| Top refresh rate | 240 Hz | 240 Hz |
| HDMI ports | 2 | 2 |
| eARC | Yes | No |
| Speakers | 10 W | 15 W |
| Build | ||
| Battery | None | None |
| Fan noise | 32 dB | 31 dB |
| Power | 330 W | 180 W |
| Dimensions | 10.7 x 8.4 x 10.2 in (W x D x H) | 11.3 x 8.5 x 5.0 in (W x D x H) |
| Weight | 15 lb | 7.3 lb |
| Warranty | 3 years | 3 years |
| Released | 2023-10 | 2024-04 |