LG CineBeam GRU510N vs Optoma ZK551
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 LG CineBeam GRU510NMSRP $3,999.99 | Optoma ZK551 | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | DLP |
| Number of imaging devices | — | 1 |
| Native aspect ratio | 16:9 | 16:9 |
| Pixel shift | — | XPR 4-way |
| Addressable resolution | 3840 × 2160 | 3840 × 2160 |
| Optics | ||
| Throw ratio | 1.3–2.09:1Derived | 1.4–2.24:1 |
| Projection distance table | 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 | 40″: 1.24–1.98 m · 60″: 1.86–2.98 m · 100″: 3.1–4.96 m · 145″: 4.49–7.19 m · 180″: 5.58–8.93 m |
| Zoom type | Optical | Optical |
| Zoom ratio | 1.6× | 1.6× |
| Focus | Manual | Manual |
| Vertical lens shift | ±50% | 102–117% |
| Horizontal lens shift | ±20% | — |
| Motorized lens shift | No | — |
| Fixed offset | — | 102% |
| Focal length | — | 20.91–32.62 mm |
| F-number | — | 2.5–3.26 |
| Interchangeable lens | — | No |
| Image size range | 40–300 in | 20–300 in |
| Vertical keystone | — | -30–30° |
| Horizontal keystone | — | -30–30° |
| Corner / warp correction | Warp | Warp |
| Light source | ||
| Light source type | Laser (phosphor) | Laser (phosphor) |
| Light source detail | Blue laser module, 448 nm - 462 nm, approx. 95 W light output; laser diode plus phosphor wheel | DuraCore laser |
| Light source life | Up to: 20,000 h | Eco: 30,000 h |
| Constant brightness mode | — | Yes |
| Cool-down time | — | 90 s |
| Brightness | ||
| ISO light output | — | 5,100 lm |
| ANSI lumens | 5,000 lm | — |
| Brightness uniformity (centre-to-corner) | — | 75% |
| Contrast & black level | ||
| Dynamic contrast | 3,000,000:1 | 3,000,000:1 |
| Colour | ||
| Gamma / EOTF presets | — | 2.2, 2.4 |
| Calibration & picture control | ||
| Colour management system | 6-axis | 6-axis |
| HDR | ||
| HDR formats | HDR10 | — |
| Motion & gaming | ||
| Frame interpolation (MEMC) | Yes | — |
| Max refresh rate | 1920×1080: 120 Hz · 3840×2160: 60 Hz | 1920×1080: 240 Hz · 3840×2160: 60 Hz |
| Input lag (rated) | — | 1920×1080 @ 60 Hz: 17 ms · 1920×1080 @ 120 Hz: 8.6 ms · 1920×1080 @ 240 Hz: 4.4 ms · 3840×2160 @ 60 Hz: 17 ms |
| Audio | ||
| Speaker power | 10 W | 15 W |
| Speaker count | 2 | 1 |
| Audio channels | Stereo | Mono |
| Audio outputs | 3.5 mm, HDMI ARC, Bluetooth | 3.5 mm |
| HDMI ARC | Yes | — |
| Bluetooth speaker mode | Yes | — |
| Bluetooth audio out | Yes | — |
| Inputs, control & connectivity | ||
| Max input signal | 4096 × 2160 | 3840 × 2160 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI 1: HDMI, HDCP 2.2; HDMI 2: HDMI, HDCP 2.2 | HDMI 1: HDMI 2.0, HDCP 2.3; HDMI 2: HDMI 2.0, HDCP 2.3 |
| Horizontal scan frequency | — | 15–150 kHz |
| Vertical scan frequency | — | 24–240 Hz |
| HDBaseT | Yes | — |
| USB media playback | Yes | — |
| RS-232 | Yes | Yes |
| LAN control | Yes | Yes |
| 12 V trigger | — | Yes |
| PJLink class | — | Class 1 |
| Control ecosystem drivers | — | Crestron |
| Ethernet | Yes | Yes |
| Firmware / software | ||
| Casting | Miracast, DLNA | Miracast |
| Update policy | — | Over-the-air (OTA) firmware updates |
| 3D | ||
| 3D support | — | Yes |
| 3D sync method | — | DLP-Link |
| 3D formats | — | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| Acoustic noise | ||
| Fan noise (sound pressure) | Eco: 26 dB(A) · Normal: 27 dB(A) · High brightness: 29 dB(A) | Min: 28 dB(A) · Max: 34 dB(A) |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 0–80%RH | — |
| Altitude / high-altitude mode | — | 3,048 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Ceiling | Table, Ceiling, Rear, Portrait, 360° |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | 380 W | 245 W |
| Power consumption by mode | — | Eco 110v: 170 W · Eco 220v: 168 W · Bright 110v: 245 W · Bright 220v: 240 W |
| Standby power | 0.5 W | 0.5 W |
| Power supply | Internal | External brickPreliminary |
| Physical & installation | ||
| Width | 370 mm | 274 mm |
| Depth | 326 mm | 216 mm |
| Height | 156 mm | 114 mm |
| Weight | 9.7 kg | 3.5 kg |
| Ingress protection | — | IP6XPreliminary |
| Mount hole pattern | — | Screw: M4*10mm |
| Safety & compliance | ||
| Photobiological risk group | RG2 | RG2 |
| Laser product class | Class 1 | Class 1 (consumer laser product), Risk Group 2 |
| Safety & market certifications | — | FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 2 yr | — |
| User manual | https://www.projectorcentral.com/pdf/projector_manual_11330.pdf | https://region-resource.optoma.com/products/documents/K5mU9Peeq4zSbamp55pR5XFag9nk3bx7MMN5DCWz.pdf |
| In the box | ||
| Box contents | Projector, Remote, Batteries, Power cord, Warranty card | Power cord, Remote, Batteries, Quick start guide |
| Remote type | IR | IR |