BenQ TH671ST vs Epson Home Cinema 3800
Bold marks the better figure where both are stated to the same standard. βββ means the manufacturer doesn't state it.
 BenQ TH671STMSRP $749 | Epson Home Cinema 3800 MSRP $1,699.99 | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | 3LCD |
| Technology brand | DLP | 3LCD |
| Number of imaging devices | 1 | 3 |
| Chip / panel model | DC3 DMD | β |
| Chip / panel diagonal | 0.65 in | 0.61 in |
| Native aspect ratio | 16:9 | 16:9 |
| Native resolution | 1920 Γ 1080 | 1920 Γ 1080 |
| Pixel shift | β | 4K PRO-UHD |
| Addressable resolution | β | 3840 Γ 2160 |
| Colour wheel segments | 6 segment (RGBYCW) | β |
| Colour wheel speed | 2Γ | β |
| Panel alignment / convergence control | β | Zone |
| Optics | ||
| Throw ratio | 0.69β0.83:1 | 1.32β2.15:1 |
| Throw reference point | Lens | β |
| Projection distance table | 60β³: 0.92β1.1 m Β· 70β³: 1.07β1.29 m Β· 80β³: 1.22β1.47 m Β· 90β³: 1.38β1.65 m Β· 100β³: 1.53β1.84 m Β· 110β³: 1.68β2.02 m Β· 120β³: 1.83β2.21 m Β· 140β³: 2.14β2.57 m Β· 160β³: 2.44β2.94 m Β· 180β³: 2.75β3.31 m | 40β³: 1.16β1.89 m Β· 60β³: 1.75β2.85 m Β· 80β³: 2.35β3.81 m Β· 100β³: 2.95β4.77 m Β· 120β³: 3.54β5.74 m Β· 150β³: 4.44β7.18 m Β· 200β³: 5.93β9.58 m |
| Zoom type | Optical | Optical |
| Zoom ratio | 1.2Γ | 1.62Γ |
| Focus | Manual | Manual |
| Vertical lens shift | β | Β±60% |
| Horizontal lens shift | β | Β±24% |
| Motorized lens shift | β | No |
| Fixed offset | 103% | β |
| Focal length | 10.2β12.24 mm | 18.2β29.2 mm |
| F-number | 2.6β2.78 | 1.49β1.77 |
| Lens elements | β | 12 |
| Image size range | 60β120 in | 40β300 in |
| Vertical keystone | -40β40Β° | -30β30Β° |
| Horizontal keystone | β | -30β30Β° |
| Corner / warp correction | β | 4pt |
| Light source | ||
| Light source type | Lamp | Lamp |
| Light source detail | β | UHE (Ultra High Efficiency) lamp |
| Lamp wattage | 240 W | 250 W |
| Light source life | Normal: 4,000 h Β· Smarteco: 10,000 h Β· Lampsave: 15,000 h Β· Eco: 10,000 h | High: 3,500 h Β· Medium: 4,000 h Β· Eco: 5,000 h |
| Warm-up time | 30 s | β |
| Cool-down time | 90 s | β |
| Light-source dimming | β | Manual steps |
| Brightness | ||
| ISO light output | β | 3,000 lm |
| ANSI lumens | 3,000 lm | β |
| Colour light output (CLO) | β | 3,000 lm (colour) |
| Contrast & black level | ||
| Dynamic contrast | 10,000:1 | 100,000:1 |
| Dynamic light control | β | Dynamic iris |
| Colour | ||
| Rec.709 gamut | 92% | β |
| Gamut metric | Coverage | β |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | β |
| Bit depth / 'number of colours' | 30 bit | 30 bit |
| Calibration & picture control | ||
| Colour management system | 6-axis | 6-axis |
| Picture mode memories | 2 | 10 |
| HDR | ||
| HDR formats | β | HDR10, HLG |
| Tone mapping type | β | Adjustable |
| Motion & gaming | ||
| Frame interpolation (MEMC) | β | Yes |
| Interpolation at 4K | β | No |
| Max refresh rate | 1920Γ1080: 60 Hz | 3840Γ2160: 60 Hz |
| Input lag (rated) | 1920Γ1080 @ 60 Hz: 16.7 ms | 3840Γ2160 @ 60 Hz: 20 ms |
| Audio | ||
| Speaker power | 5 W | 20 W |
| Speaker count | 1 | 2 |
| Audio channels | Mono | Stereo |
| Audio partner | Waves MaxxAudio | β |
| Audio outputs | 3.5 mm | 3.5 mm, Bluetooth |
| HDMI ARC | β | No |
| HDMI eARC | β | No |
| Bluetooth audio out | β | Yes |
| Inputs, control & connectivity | ||
| Max input signal | 1920 Γ 1200 | 4096 Γ 2160 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI 1: HDMI 1.4a; HDMI 2: HDMI 1.4a, HDCP 1.4 | HDMI 1: HDMI 2.0, HDCP 2.2; HDMI 2: HDMI 2.0, HDCP 2.2 |
| Audio input terminals | 3.5 mm | β |
| Horizontal scan frequency | 15β102 kHz | β |
| Vertical scan frequency | 23β120 Hz | β |
| VGA input | Yes | β |
| USB media playback | No | β |
| RS-232 | Yes | Yes |
| 12 V trigger | β | Yes |
| Bluetooth version | β | 3.0 |
| Firmware / software | ||
| Smart OS | β | None |
| 3D | ||
| 3D support | Yes | Yes |
| 3D sync method | DLP-Link | RF |
| 3D formats | Top-bottom, Frame sequential, Frame packing, Side-by-side | Side-by-side, Top-bottom, Frame packing |
| Glasses included | 0 | 0 |
| Setup automation | ||
| Autofocus | None | None |
| Auto keystone | No | No |
| Acoustic noise | ||
| Fan noise (sound pressure) | Typical: 33 dB(A) Β· Eco: 29 dB(A) | High: 35 dB(A) Β· Eco: 24 dB(A) |
| Environment & power | ||
| Operating temperature | 0β40Β°C | 5β35Β°C |
| Operating humidity | 10β90%RH | 20β80%RH |
| Altitude / high-altitude mode | 3,000 m | 3,048 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Rear, Ceiling | Table, Ceiling, Rear |
| Rated voltage | 100β240 V | 100β240 V |
| Rated frequency | 50β60 Hz | 50β60 Hz |
| Power consumption (max) | 355 W | β |
| Power consumption by mode | Max: 355 W Β· Normal: 320 W Β· Eco: 240 W | High: 406 W Β· Medium: 376 W Β· Eco: 309 W |
| Standby power | 0.5 W | 0.5 W |
| Physical & installation | ||
| Width | 296 mm | 410 mm |
| Depth | 224 mm | 330 mm |
| Height | 120 mm | 157 mm |
| Weight | 2.7 kg | 6.9 kg |
| Mount hole pattern | Thread: M4 Β· Screw length mm: 20β25 | Thread: M4 Β· Screw length mm: 9 |
| Air filter | β | Replaceable |
| Safety & compliance | ||
| Safety & market certifications | CE | FCC, UL |
| Support & ownership | ||
| Warranty | πΊπΈ US 3 yr | πΊπΈ US 2 yr |
| Light-source warranty | US: pre-installed lamp 2,000 hours or one year from purchase, whichever comes first (replacement lamp 90 days or 500 hours) | 90-day limited lamp warranty |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TH671ST/TH671ST_UM_EN_230426092526.pdf | https://files.support.epson.com/docid/cpd5/cpd57551.pdf |
| In the box | ||
| Box contents | Remote, Power cord, Vga cable, Manual, Quick start guide, Lens cap | Projector, Power cord, Remote, Batteries, Quick start guide, Lens cover |
| Remote type | IR | Backlit |
| 3D glasses in box | 0 | 0 |