InFocus INL4129 vs Optoma ZH551
 MSRP $3,089 |  $1,709.05 | |
|---|---|---|
| Key differences | ||
| White light output | — | 5,600 lm ISO |
| Native resolution | WUXGA (1920 × 1200) | 1080p (1920 × 1080) |
| Lowest input lag | — | 8.6 msDerived |
| HDR formats | — | HLG |
| Fan noise | Normal 30 dB(A) · Eco 28 dB(A) | Normal 33 dB(A) · Eco 28 dB(A) |
| Price | MSRP $3,089 | $1,709.05 |
| Room fit | ||
| Distance to screen | 3.0–4.8 m | 3.1–5.0 m |
| Brightness | ||
| Rated brightness | — | 5,600 lmDerived |
| White light output | — | 5,600 lm ISO |
| Claimed brightness (non-standard) | 5,600 lm | — |
| Brightness uniformity | 85% | 75% |
| Display system | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | 0.67 in | 0.65 in |
| On-screen resolution | WUXGA (1920 × 1200)Derived | 1080p (1920 × 1080)Derived |
| Native resolution | WUXGA (1920 × 1200) | 1080p (1920 × 1080) |
| Native aspect | 16:10Derived | 16:9Derived |
| Contrast | ||
| Dynamic contrast | — | 3,000,000:1 |
| Colour | ||
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | — |
| HDR | ||
| HDR formats | — | HLG |
| Calibration | ||
| Colour management (CMS) | 6-axis | 6-axis |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | Side-by-side, Top-bottom, Frame sequential | + Frame packing, Side-by-side, Top-bottom, Frame sequential |
| 3D glasses sync | DLP-Link | DLP-Link |
| Light source | ||
| Light source | Laser (phosphor) | Laser (phosphor) |
| Emitter | Blue laser + phosphor | — |
| Light engine | Quantum Laser | — |
| Light-source life | Up to 30,000 h | 30,000 h eco |
| Light output control | Steps | — |
| Cool-down time | — | 90 s |
| Optics | ||
| Throw ratio | 1.4–2.24:1 | 1.4–2.24:1 |
| Image size | 21–302 in | 28–145 in |
| Projection offset | 102% | 103% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.6×Derived | 1.6×Derived |
| Focal length | 20.91–32.62 mm | 20.91–32.62 mm |
| Aperture (f-number) | — | 2.5–3.26 |
| Focus | Manual | Manual |
| Autofocus | No | No |
| Vertical lens shift | — | 0–15% |
| Motorised lens shift | No | No |
| Vertical keystone | 30° | 30° |
| Horizontal keystone | 30° | 30° |
| Auto keystone | Yes | — |
| Corner correction | 4-corner | 4-corner |
| Interchangeable lens | No | — |
| Motion & gaming | ||
| Max input refresh | 1080p: 120 Hz | — |
| Max refresh at 1080p | 120 HzDerived | — |
| Input lag | — | 1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.9 ms |
| Lowest input lag | — | 8.6 msDerived |
| Input lag at 4K 60 Hz | — | 16.9 msDerived |
| Inputs & control | ||
| HDMI inputs | HDMI 2.0 · HDMI 1.4 | 2 × HDMI 2.0 |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 2.0Derived |
| Other video inputs | VGA, + HDBaseT | VGA |
| Max input resolution | DCI 4K | 4K UHD |
| USB media playback | No | — |
| Control ports | RS-232 | RS-232, + 12 V trigger |
| PJLink | — | Class 1 |
| Control-system drivers | — | Crestron |
| Horizontal scan | 15.4–91.1 kHz | 15.38–135 kHz |
| Vertical scan | 24–120 Hz | 23.97–120 Hz |
| Smart platform | ||
| Ethernet | Yes | Yes |
| Casting | — | Miracast |
| Audio | ||
| Speaker power | 10 W | 15 W |
| Speakers | 1 | — |
| Layout | Mono | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 374 × 302 × 117 mm | 274 × 216 × 114 mm |
| Weight | 5,500 g | 2,900 g |
| Orientations | + Table, + Ceiling, + Rear | + Portrait, + 360° |
| Dust filter | None | — |
| Ingress protection | IP5X | IP6X (light engine) |
| Environment & power | ||
| Operating temperature | 5–40°C | 0–40°C |
| Operating humidity | 10–85%RH | — |
| Altitude | 3,048 m | 3,048 m · high-altitude mode |
| Power draw | Max 341 W · Eco 190 W | Normal 230 W · Eco 200 W |
| Standby | Up to 0.5 W | Up to 0.5 W |
| Networked standby | Up to 2 W | — |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Normal 30 dB(A) · Eco 28 dB(A) | Normal 33 dB(A) · Eco 28 dB(A) |
| Safety & compliance | ||
| Laser class | — | Class 1 |
| Risk group | RG2 | RG2 |
| Hazard distance | — | 1 m |
| Marks | + CE, FCC, + CCC | FCC |
| Support & ownership | ||
| Warranty | — | 3 yr (light source 5 yr or 12,000 h) |
| User manual | https://cdn.infocus.com/2023/07/UM_INL4128-INL4129-English.pdf | https://region-resource.optoma.com/products/documents/sj3ba9jjcgNo3jqZNW4eSSqXsUgO3XnIzHgAsT4w.pdf |
| In the box | ||
| In the box | Power cord, Remote, Quick start guide, + VGA cable, + Lens cap | Power cord, Remote, + Remote batteries, Quick start guide, + Wi-Fi dongle |
| Remote | IR | IR |