BenQ LK936ST vs LG CineBeam GRU510N
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 BenQ LK936ST |  LG CineBeam GRU510NMSRP $3,999.99 | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | DLP |
| Technology brand | DLP | — |
| Number of imaging devices | 1 | — |
| Native aspect ratio | 16:9 | 16:9 |
| Addressable resolution | 3840 × 2160 | 3840 × 2160 |
| Optics | ||
| Throw ratio | 0.81–0.89:1 | 1.3–2.09:1Derived |
| Throw reference point | Lens | — |
| Projection distance table | 60″: 1.08–1.18 m · 80″: 1.44–1.58 m · 100″: 1.79–1.97 m · 120″: 2.15–2.36 m · 150″: 2.69–2.96 m · 200″: 3.59–3.94 m · 250″: 4.48–4.93 m · 300″: 5.38–5.91 m | 40″: 1.12–1.82 m · 60″: 1.71–2.76 m · 80″: 2.29–3.7 m · 100″: 2.88–4.63 m · 120″: 3.46–5.55 m · 140″: 4.04–6.49 m · 160″: 4.62–7.42 m · 180″: 5.21–8.36 m · 200″: 5.79–9.3 m · 220″: 6.38–10.23 m · 240″: 6.96–11.15 m · 260″: 7.54–12.1 m · 280″: 8.13–13.03 m · 300″: 8.71–13.97 m |
| Zoom type | Optical | Optical |
| Zoom ratio | 1.1× | 1.6× |
| Focus | Manual | Manual |
| Vertical lens shift | ±60% | ±50% |
| Horizontal lens shift | ±23% | ±20% |
| Motorized lens shift | No | No |
| Focal length | 8.6–9.4 mm | — |
| F-number | 1.83–1.86 | — |
| Image size range | 30–300 in | 40–300 in |
| Vertical keystone | -40–40° | — |
| Horizontal keystone | -40–40° | — |
| Corner / warp correction | Warp | Warp |
| Light source | ||
| Light source type | Laser (phosphor) | Laser (phosphor) |
| Light source detail | Laser | Blue laser module, 448 nm - 462 nm, approx. 95 W light output; laser diode plus phosphor wheel |
| Light source life | Normal: 20,000 h | Up to: 20,000 h |
| Warm-up time | 30 s | — |
| Cool-down time | 90 s | — |
| Brightness | ||
| ANSI lumens | 5,100 lm | 5,000 lm |
| Contrast & black level | ||
| Dynamic contrast | 3,000,000:1 | 3,000,000:1 |
| Colour | ||
| Rec.709 gamut | 92% | — |
| Gamut metric | Coverage | — |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | — |
| Bit depth / 'number of colours' | 30 bit | — |
| Calibration & picture control | ||
| Colour management system | 6-axis | 6-axis |
| HDR | ||
| HDR formats | HDR10, HLG | HDR10 |
| Motion & gaming | ||
| Frame interpolation (MEMC) | — | Yes |
| Max refresh rate | — | 1920×1080: 120 Hz · 3840×2160: 60 Hz |
| Input lag (rated) | 1920×1080 @ 60 Hz: 16.7 ms · 3840×2160 @ 60 Hz: 16.7 ms | — |
| Audio | ||
| Speaker power | 10 W | 10 W |
| Speaker count | 1 | 2 |
| Audio channels | Mono | Stereo |
| Dolby Atmos | Yes | — |
| Audio outputs | 3.5 mm, Optical, HDMI eARC | 3.5 mm, HDMI ARC, Bluetooth |
| HDMI ARC | Yes | Yes |
| HDMI eARC | Yes | — |
| Bluetooth speaker mode | — | Yes |
| Bluetooth audio out | — | Yes |
| Inputs, control & connectivity | ||
| Max input signal | 3840 × 2160 | 4096 × 2160 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI-1: HDMI 2.0b, HDCP 2.2; HDMI-2: HDMI 2.0b, HDCP 2.2, eARC | HDMI 1: HDMI, HDCP 2.2; HDMI 2: HDMI, HDCP 2.2 |
| Horizontal scan frequency | 15–135 kHz | — |
| Vertical scan frequency | 23–240 Hz | — |
| HDBaseT | Yes | Yes |
| USB media playback | — | Yes |
| RS-232 | Yes | Yes |
| LAN control | Yes | Yes |
| Wired IR input | Yes | — |
| 12 V trigger | Yes | — |
| Control ecosystem drivers | Crestron | — |
| Ethernet | Yes | Yes |
| Firmware / software | ||
| Casting | — | Miracast, DLNA |
| 3D | ||
| 3D support | Yes | — |
| 3D sync method | DLP-Link | — |
| 3D formats | Frame sequential | — |
| Glasses included | 0 | — |
| Setup automation | ||
| Auto keystone | Yes | — |
| Acoustic noise | ||
| Fan noise (sound pressure) | Typical: 40 dB(A) · Eco: 33 dB(A) | Eco: 26 dB(A) · Normal: 27 dB(A) · High brightness: 29 dB(A) |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | 0–80%RH |
| Altitude / high-altitude mode | 3,000 m | — |
| High-altitude mode | Yes | Yes |
| Operating orientations | — | Table, Ceiling |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | 520 W | 380 W |
| Power consumption by mode | Typical: 440 W | — |
| Standby power | 0.5 W | 0.5 W |
| Networked standby power | 2 W | — |
| Power supply | — | Internal |
| Physical & installation | ||
| Width | 416 mm | 370 mm |
| Depth | 351 mm | 326 mm |
| Height | 166 mm | 156 mm |
| Weight | 7 kg | 9.7 kg |
| Ingress protection | IP5X | — |
| Sealed optical engine | Yes | — |
| Air filter | None | — |
| Safety & compliance | ||
| Photobiological risk group | RG2 | RG2 |
| Laser product class | Class 1 | Class 1 |
| Support & ownership | ||
| Warranty | 🇺🇸 US 3 yr | 🇺🇸 US 2 yr |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20BUSINESS/UserManual/LK936ST/LK936ST_UM_EN_241101130452.pdf | https://www.projectorcentral.com/pdf/projector_manual_11330.pdf |
| In the box | ||
| Box contents | Projector, Remote, Batteries, Installation guide, Regulatory statements, Warranty card, Power cord, Hdmi cable | Projector, Remote, Batteries, Power cord, Warranty card |
| Remote type | — | IR |