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
4.7/5
A smart LED 4K projector for a living room that doubles as a console gaming screen, with three-year coverage and no lamp to replace.
- 3,000 ANSIBrightness
- 1920 x 1080 (1080p)Native resolution
- LEDLight source
- Google TV, licensed NetflixStreaming
- 5 msInput lag
Check price at Amazon$1,599
Price checked October 29, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Very low input lag, 5 ms at 4K/60, suits console gaming
- LED light source rated 20,000 hours, so no lamp to replace
- Autofocus, auto keystone, screen fit and motorized zoom make setup quick
- Google TV with Netflix built in, plus eARC for a soundbar
Cons
- Tops out at 60 Hz, with no high refresh mode for PC gaming
- No lens shift, so it must sit centered on the screen
- Pricier per lumen than lamp projectors of similar brightness
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.
Specifications
| Model number | TK705i |
|---|---|
| Picture | |
| Brightness | 3,000 ANSI |
| Native resolution | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) |
| Display | DLP |
| Light source | LED |
| Light source life | 30,000 hours |
| HDR | HDR10, HDR10+, HLG |
| Color gamut | 98% Rec.709 |
| Dynamic contrast | 600,000:1 |
| Placement | |
| Throw | Standard throw (1:1) |
| Largest image | 150 in |
| Autofocus | Yes |
| Auto keystone | Yes |
| Auto screen fit | Yes |
| Optical zoom | 1.3x |
| Streaming and gaming | |
| Built-in apps | Google TV, licensed Netflix |
| Input lag | 5 ms |
| Top refresh rate | 60 Hz |
| HDMI ports | 2 |
| eARC | Yes |
| Speakers | 16 W |
| Build | |
| Battery | None |
| Fan noise | 26 dB |
| Power | 250 W |
| Dimensions | 229 x 250 x 168 mm (9.02 x 9.83 x 6.62 in, W x D x H) |
| Weight | 8.4 lb |
| Warranty | 3 years |
| Released | 2025-10 |
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