BenQ · 3,000–4,999 lumens · 4K
BenQ TK705STi
3,000lumens
3840×2160native
0.8–0.8throw ratio
3.8 kgweight
The BenQ TK705STi is a 0.47" DLP x 1 projector rated at 3,000 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 0.8:1. Released October 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 0.8:1 |
|---|---|---|
| 2 m (6.6 ft) | 1.12 m | 1.6 m |
| 3 m (9.8 ft) | 1.69 m | 2.4 m |
| 4 m (13.1 ft) | 2.25 m | 3.2 m |
| 5 m (16.4 ft) | 2.81 m | 4.0 m |
| 6 m (19.7 ft) | 3.38 m | 4.8 m |
| 8 m (26.2 ft) | 4.5 m | 6.4 m |
| 10 m (32.8 ft) | 5.62 m | 8.0 m |
| 12 m (39.4 ft) | 6.75 m | 9.6 m |
| 15 m (49.2 ft) | 8.44 m | 12.0 m |
| 20 m (65.6 ft) | 11.25 m | 16.0 m |
| 25 m (82.0 ft) | 14.06 m | 20.0 m |
| 30 m (98.4 ft) | 16.88 m | 24.0 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) | 267 m² | 21.8 × 12.2 m |
| Quiet street at night (5 lux) | 53 m² | 9.7 × 5.5 m |
| Lit city square (15 lux) | 18 m² | 5.6 × 3.2 m |
| Bright urban area (30 lux) | 9 m² | 4.0 × 2.2 m |
| Indoor, lights dimmed (50 lux) | 5 m² | 3.1 × 1.7 m |
Full specifications
| Aspect Ratio | 16:9 (4K HD) |
|---|---|
| Audible Noise | 26 dB / 24 dB (Eco) |
| Best Used For | Home Theater Gaming |
| Brightness | 3,000 Lumens (ANSI) 1 |
| Color Processing | 10-bit |
| Connection Panel | 12-Volt Trigger Audio Out: Mini Jack DisplayPort HDMI 2.0 (HDCP 2.2) x 2 USB: A Wireless Networking |
| Data Modes | MAX 3840x2160 |
| Digital Keystone | Horizontal & Vertical |
| Digital Zoom | Yes |
| Display Type | 0.47" DLP x 1 |
| Dynamic Contrast | 600,000:1 |
| Features | Short-Throw Geometric Correction Auto Focus Google Assistant™ Dynamic Tone Mapping HDR10+ HDMI CEC Blackboard Mode |
| Image Size | 49.91" - 160.40" |
| Included Lens | Fixed focal length , Powered focus |
| Input Lag | 4K/60: 5ms | 1080p/60: 5ms |
| Internal Speakers | 8.0 Watts × 2 |
| Lens Shift | No |
| Light Source | LED |
| Light Source Life | 20,000 hours / 30,000 hours (Eco) |
| MSRP | $1,999 (USD) |
| Power | 250 Watts 100V - 240V |
| Projector Placement | For a " diagonal screen, place the projector lens 5'-10" from the screen. |
| Projector Size | 6.62" x 9.02" x 9.83" (HxWxD) |
| Released | October 2025 |
| Resolution | 3840x2160 |
| Status | Shipping |
| Street Price | $1,999 (USD) |
| Throw Distance | 2.9' - 9.3' Calculate Throw Distance |
| Throw Ratio | 0.80:1 (D:W) |
| Video Modes | 720p, 1080i, 1080p/60, 576i, 576p, 480p, 480i |
| Warranty | 3 Years |
| Weight | 8.4 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 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 |
| LG CineBeam HU915QB | 3,000 | 3840×2160 | Laser Phosphor | 0.19:1 | $5,832 |
| Wolf Cinema TXF-1100 | 3,000 | 3840×2160 | Laser Phosphor | 1.4–2.25:1 | $11,000 |
| Optoma UHZ55 | 3,000 | 3840×2160 | Laser Phosphor | 1.21–1.59:1 | $1,599 |
| Optoma UHZ58LV | 3,000 | 3840×2160 | Laser Phosphor | 1.4–2.24:1 | $2,199 |
| BenQ W4100i | 3,200 | 3840×2160 | LED | 1.15–1.5:1 | $2,749 |
| BenQ TK710 | 3,200 | 3840×2160 | Laser Phosphor | 1.15–1.5:1 | $1,966 |