InFocus INL4129 vs ViewSonic LS901-4K
 MSRP $3,089 |  $1,969 | |
|---|---|---|
| Key differences | ||
| White light output | — | 5,500 lm ANSI |
| Native resolution | WUXGA (1920 × 1200) | — |
| Throw ratio | 1.4–2.24:1 | 1.2–2.04:1 |
| HDR formats | — | HDR10, HLG |
| Fan noise | Normal 30 dB(A) · Eco 28 dB(A) | Normal 31 dB(A) · Eco 25 dB(A) |
| Price | MSRP $3,089 | $1,969 |
| Room fit | ||
| Distance to screen | 3.0–4.8 m | 2.7–4.5 m |
| Brightness | ||
| Rated brightness | — | 5,500 lmDerived |
| White light output | — | 5,500 lm ANSI |
| Claimed brightness (non-standard) | 5,600 lm | 6,000 lm |
| Brightness uniformity | 85% | — |
| Display system | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | 0.67 in | 0.65 in |
| On-screen resolution | WUXGA (1920 × 1200)Derived | 4K UHD (3840 × 2160)Derived |
| Native resolution | WUXGA (1920 × 1200) | — |
| Native aspect | 16:10Derived | 16:9Derived |
| Addressable resolution | — | 4K UHD (3840 × 2160) |
| Contrast | ||
| Dynamic contrast | — | 3,000,000:1 |
| Dynamic contrast method | — | Light-source dimming |
| Colour | ||
| Colour bit depth (per channel) | — | 10 bit |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | — |
| HDR | ||
| HDR formats | — | HDR10, HLG |
| Calibration | ||
| Colour management (CMS) | 6-axis | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | Side-by-side, Top-bottom, Frame sequential | 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 | 20,000 h normal · 30,000 h super eco |
| Light output control | Steps | — |
| Optics | ||
| Throw ratio | 1.4–2.24:1 | 1.2–2.04:1 |
| Image size | 21–302 in | 30–300 in |
| Projection offset | 102% | 154% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.6×Derived | 1.7×Derived |
| Focal length | 20.91–32.62 mm | 17.63–27.9 mm |
| Aperture (f-number) | — | 2.3–3 |
| Focus | Manual | Manual |
| Autofocus | No | No |
| Vertical lens shift | — | -21–0% |
| Motorised lens shift | No | — |
| Vertical keystone | 30° | 30° |
| Horizontal keystone | 30° | 30° |
| Auto keystone | Yes | — |
| Corner correction | 4-corner | — |
| Grid warp | — | Yes |
| Interchangeable lens | No | — |
| Motion & gaming | ||
| Max input refresh | 1080p: 120 Hz | 1080p: 240 Hz · 2560 × 1440: 120 Hz · 4K UHD: 60 Hz |
| Max refresh at 1080p | 120 HzDerived | 240 HzDerived |
| Max refresh at 4K | — | 60 HzDerived |
| Inputs & control | ||
| HDMI inputs | HDMI 2.0 · HDMI 1.4 | 2 × HDMI 2.0 (HDCP 2.3) |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 2.0Derived |
| Other video inputs | VGA, HDBaseT | — |
| Max input resolution | DCI 4K | 4K UHD |
| USB media playback | No | No |
| Control ports | RS-232 | RS-232 |
| Control-system drivers | — | Crestron |
| Horizontal scan | 15.4–91.1 kHz | 15–255 kHz |
| Vertical scan | 24–120 Hz | 23–240 Hz |
| Smart platform | ||
| Ethernet | Yes | Yes |
| Audio | ||
| Speaker power | 10 W | 30 W |
| Speakers | 1 | 2 |
| Layout | Mono | — |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 374 × 302 × 117 mm | 337 × 280 × 132 mm |
| Weight | 5,500 g | 4,850 g |
| Colours | — | White |
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Dust filter | None | None |
| Ingress protection | IP5X | — |
| Sealed optical engine | — | Yes |
| Environment & power | ||
| Operating temperature | 5–40°C | 0–40°C |
| Operating humidity | 10–85%RH | 10–80%RH |
| Altitude | 3,048 m | 3,658 m · high-altitude mode |
| Power draw | Max 341 W · Eco 190 W | 245 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 31 dB(A) · Eco 25 dB(A) |
| Safety & compliance | ||
| Laser class | — | Class 1 |
| Risk group | RG2 | RG2 |
| Hazard distance | — | 1 m |
| Marks | CE, FCC, + CCC | CE, FCC |
| Support & ownership | ||
| Warranty | — | 3 yr |
| User manual | https://cdn.infocus.com/2023/07/UM_INL4128-INL4129-English.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LS901HD_LS901-4K/LS901HD_LS901-4K_UG_ENG.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 |
| Remote | IR | IR |