BenQ TK800M vs BenQ TK850i
 BenQ TK800MMSRP $1,299 |  MSRP $1,799 | |
|---|---|---|
| Key differences | ||
| Native contrast (on/off) | 10,000:1 | — |
| Throw ratio | 1.5–1.65:1 | 1.13–1.47:1 |
| Lowest input lag | 51 msDerived | 83.34 msDerived |
| Fan noise | Normal 33 dB(A) · Eco 29 dB(A) | Normal 30 dB(A) · Eco 28 dB(A) |
| Price | MSRP $1,299 | MSRP $1,799 |
| Room fit | ||
| Distance to screen | 3.3–3.7 m | 2.5–3.3 m |
| Brightness | ||
| Rated brightness | 3,000 lmDerived | 3,000 lmDerived |
| White light outputANSI | 3,000 lm ANSI | 3,000 lm ANSI |
| Display system | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | 0.47 in | 0.47 in |
| On-screen resolution | 4K UHD (3840 × 2160)Derived | 4K UHD (3840 × 2160)Derived |
| Native resolution | 1080p (1920 × 1080) | 1080p (1920 × 1080) |
| Native aspect | 16:9Derived | 16:9Derived |
| Pixel shift | XPR 4-way | XPR 4-way |
| Addressable resolution | 4K UHD (3840 × 2160) | 4K UHD (3840 × 2160) |
| Colour wheel segments | 4 | 4 |
| Colour wheel speed | — | 2× |
| Contrast | ||
| Native contrast (on/off) | 10,000:1 | — |
| Dynamic contrast | — | 30,000:1 |
| Dynamic contrast method | None | Dynamic iris |
| Colour | ||
| Colour gamut | Rec. 709 96% coverage | Rec. 709 98% coverage |
| Colour bit depth (per channel) | 10 bit | 10 bit |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | 2.2, 2.4, 2.6 |
| Colour temperature presets | — | Native |
| HDR | ||
| HDR formats | HDR10, HLG | HDR10, HLG |
| Tone mapping | Adjustable | — |
| Tone mapping (maker name) | — | HDR-PRO |
| Calibration | ||
| Colour management (CMS) | 6-axis | 6-axis |
| Picture mode memories | 2 | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | Frame packing, Side-by-side, Top-bottom, Frame sequential | — |
| Light source | ||
| Light source | Lamp | Lamp |
| Lamp power | 240 W | 245 W |
| Replacement lamp | 5J.JHN05.001 | 5J.JKC05.001 |
| Light-source life | 4,000 h normal · 10,000 h eco · 15,000 h super eco · 8,000 h dynamic | 4,000 h normal · 10,000 h eco · 15,000 h super eco |
| Warm-up time | — | 30 s |
| Optics | ||
| Throw ratio | 1.5–1.65:1 | 1.13–1.47:1 |
| Image size | 60–200 in | 30–300 in |
| Projection offset | 110% | 100% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.1×Derived | 1.3×Derived |
| Focal length | 15.84–17.45 mm | 12–15.6 mm |
| Aperture (f-number) | 2–2.05 | 1.9–2.47 |
| Focus | Manual | Manual |
| Vertical lens shift | None | 0–10% |
| Motorised lens shift | No | — |
| Vertical keystone | 40° | 30° |
| Auto keystone | Yes | Yes |
| Interchangeable lens | No | — |
| Lens elements | 7 | 10 |
| Lens material | Glass | — |
| Motion & gaming | ||
| Frame interpolation (MEMC) | No | Yes |
| Input lag | 1080p: 60 Hz 51 ms | 1080p: 60 Hz 83.3 ms · 4K UHD: 60 Hz 83.3 ms |
| Lowest input lag | 51 msDerived | 83.34 msDerived |
| Input lag at 4K 60 Hz | — | 83.34 msDerived |
| Inputs & control | ||
| HDMI inputs | HDMI 2.0 (HDCP 2.2) · HDMI 1.4 (HDCP 1.4) | HDMI 2.0 (ARC, HDCP 2.2) · HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (HDCP 2.2, internal) |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 2.0Derived |
| Other video inputs | VGA | — |
| Max input resolution | 4K UHD | 4K UHD |
| Audio inputs | 3.5 mm | — |
| USB media playback | No | Yes |
| Control ports | RS-232, + 12 V trigger | RS-232 |
| Horizontal scan | 15–135 kHz | 15–135 kHz |
| Vertical scan | 23–120 Hz | 23–120 Hz |
| Smart platform | ||
| Wi-Fi | — | Wi-Fi 5 |
| Bluetooth | — | 4.2 |
| Smart platform | None | Android TV |
| OS version | — | 9 |
| Google-certified | — | Yes |
| Chipset | — | Amlogic S905Y2 |
| RAM | — | 2 GB |
| Storage | — | 16 GB |
| Netflix | — | No |
| Casting | — | Chromecast built-in |
| Audio | ||
| Speaker power | 5 W | 10 W |
| Speakers | 1 | 2 |
| Layout | Mono | — |
| Audio outputs | 3.5 mm | 3.5 mm, + Optical, + HDMI ARC |
| HDMI audio return | NoneDerived | ARCDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 353 × 272 × 135 mm | 380 × 263 × 127 mm |
| Weight | 4,200 g | 4,200 g |
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Ceiling mount | M4, 20–25 mm screws | M4, 20–25 mm screws |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | 10–90%RH |
| Altitude | 3,000 m · high-altitude mode | 3,000 m · high-altitude mode |
| Power draw | Max 385 W · Normal 330 W · Eco 250 W | Max 350 W · Normal 340 W · Eco 280 W |
| Standby | Up to 0.5 W | Up to 0.5 W |
| Power supply | Built in | — |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Normal 33 dB(A) · Eco 29 dB(A) | Normal 30 dB(A) · Eco 28 dB(A) |
| Safety & compliance | ||
| Risk group | RG2 | — |
| Support & ownership | ||
| Warranty | 3 yr (light source 1 yr or 2,000 h) | 3 yr |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TK800M/TK800M_UM_EN_210701093638.pdf | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TK850i/TK850i_UM_EN_200804170913.pdf |
| Spare parts | Lamp 5J.JHN05.001 | Lamp 5J.JKC05.001 |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, Quick start guide, + User manual, Warranty card | Power cord, Remote, Remote batteries, Quick start guide, Warranty card, + Streaming dongle |
| Remote | IR · backlit | IR · Bluetooth · voice · backlit |