BenQ · 3,000–4,999 lumens · 4K
BenQ W4100i
3,200lumens
3840×2160native
1.15–1.5throw ratio
6.1 kgweight
The BenQ W4100i is a DLP x 1 projector rated at 3,200 lumens with a native resolution of 3840×2160. It uses a led light source rated for 20,000 hours / 30,000 hours (Eco). Its lens has a throw ratio of 1.15–1.5:1. Released July 2025.
Throw distance table
Distance from lens to surface for each image width (16:9 (4K HD)). Calculated as throw ratio × width; check the manufacturer's lens calculator before installation.
| Image width | Height | Standard lens 1.15–1.5:1 |
|---|---|---|
| 2 m (6.6 ft) | 1.12 m | 2.3–3.0 m |
| 3 m (9.8 ft) | 1.69 m | 3.4–4.5 m |
| 4 m (13.1 ft) | 2.25 m | 4.6–6.0 m |
| 5 m (16.4 ft) | 2.81 m | 5.8–7.5 m |
| 6 m (19.7 ft) | 3.38 m | 6.9–9.0 m |
| 8 m (26.2 ft) | 4.5 m | 9.2–12.0 m |
| 10 m (32.8 ft) | 5.62 m | 11.5–15.0 m |
| 12 m (39.4 ft) | 6.75 m | 13.8–18.0 m |
| 15 m (49.2 ft) | 8.44 m | 17.2–22.5 m |
| 20 m (65.6 ft) | 11.25 m | 23.0–30.0 m |
| 25 m (82.0 ft) | 14.06 m | 28.7–37.5 m |
| 30 m (98.4 ft) | 16.88 m | 34.5–45.0 m |
Open in the throw-distance calculator →
Maximum image size for projection mapping
Largest image that keeps a 10:1 contrast against ambient light on a light, matte surface (80% optical efficiency). See how this is calculated.
| Ambient light | Max area | Max width × height |
|---|---|---|
| Dark rural site (1 lux) | 284 m² | 22.5 × 12.6 m |
| Quiet street at night (5 lux) | 57 m² | 10.1 × 5.7 m |
| Lit city square (15 lux) | 19 m² | 5.8 × 3.3 m |
| Bright urban area (30 lux) | 9 m² | 4.1 × 2.3 m |
| Indoor, lights dimmed (50 lux) | 6 m² | 3.2 × 1.8 m |
Full specifications
| 3D Modes | Full HD 3D |
|---|---|
| Aspect Ratio | 16:9 (4K HD) |
| Best Used For | Home Theater Gaming |
| Brightness | 3,200 Lumens (ANSI) 1 |
| Color Processing | 10-bit |
| Connection Panel | 12-Volt Trigger Audio Out: Mini Jack Audio Out: Optical HDMI 2.1 x 3 RS232: DB-9pin USB: A x 3 Wireless Networking |
| Data Modes | MAX 3840x2160 |
| Digital Keystone | Horizontal & Vertical |
| Display Type | DLP x 1 |
| Features | Full HD 3D Geometric Correction Android TV™ Google Assistant™ Dynamic Tone Mapping HDR10+ |
| Image Size | 30.11" - 299.91" |
| Included Lens | 1.3x manual zoom , manual focus |
| Input Lag | 4K/60: 17.9ms | 1080p/60: 17.9ms | 1080p/120: 13ms | 1080p/240: 6.5ms |
| Internal Speakers | 5.0 Watts Mono |
| Lens Shift | Horizontal +/-15% & Vertical +0.00% / -60% |
| Light Source | LED |
| Light Source Life | 20,000 hours / 30,000 hours (Eco) |
| MSRP | $2,999 (USD) |
| Power | 330 Watts 100V - 240V |
| Projector Placement | For a " diagonal screen, place the projector lens between 8'-4" and 10'-11" from the screen. |
| Projector Size | 5.31" x 16.56" x 12.28" (HxWxD) |
| Released | July 2025 |
| Resolution | 3840x2160 |
| Status | Shipping |
| Street Price | $2,749 (USD) |
| Throw Distance | 3.3' - 25.1' Calculate Throw Distance |
| Throw Ratio | 1.15:1 - 1.50:1 (D:W) |
| Video Modes | 720p, 1080i, 1080p/60 |
| Warranty | 3 Years |
| Weight | 13.5 lbs |
Specifications compiled from ProjectorCentral and manufacturer data. Prices change — verify with dealers.
Similar projectors
| Model | Lumens | Resolution | Light source | Throw ratio | Street price |
|---|---|---|---|---|---|
| BenQ TK710 | 3,200 | 3840×2160 | Laser Phosphor | 1.15–1.5:1 | $1,966 |
| BenQ TK710STi | 3,200 | 3840×2160 | Laser Phosphor | 0.69–0.83:1 | $2,132 |
| BenQ X3100i | 3,300 | 3840×2160 | LED | 1.15–1.5:1 | $2,266 |
| ViewSonic PX701-4K | 3,200 | 3840×2160 | 203W UHP bulb | 1.5–1.65:1 | $980 |
| BenQ TK705STi | 3,000 | 3840×2160 | LED | 0.8:1 | $1,999 |
| BenQ TK700ST | 3,000 | 3840×2160 | Metal Halide bulb | 0.9–1.08:1 | $1,799 |
| BenQ TK705i | 3,000 | 3840×2160 | LED | 1.0–1.3:1 | $1,599 |
| ViewSonic X1-4K Pro | 3,300 | 3840×2160 | LED | 1.15–1.5:1 | $1,545 |