Optoma ZH401e vs Optoma ZH451
 $899 | | |
|---|---|---|
| Key differences | ||
| Throw ratio | 1.48–1.62:1 | 1.4–2.24:1 |
| Lowest input lag | — | 8.6 msDerived |
| HDR formats | HDR10, HLG | — |
| Fan noise | Normal 31 dB(A) · Eco 29 dB(A) | Max 31 dB(A) · Eco 29 dB(A) |
| Price | $899 | — |
| Room fit | ||
| Distance to screen | 3.3–3.6 m | 3.1–5.0 m |
| Brightness | ||
| Rated brightness | 4,600 lmDerived | 4,600 lmDerived |
| White light outputISO | 4,600 lm ISO | 4,600 lm ISO |
| Brightness uniformity | 75% | 75% |
| Display system | ||
| Imaging technology | DLP | DLP |
| On-screen resolution | 1080p (1920 × 1080)Derived | 1080p (1920 × 1080)Derived |
| Native resolution | 1080p (1920 × 1080) | 1080p (1920 × 1080) |
| Native aspect | 16:9Derived | 16:9Derived |
| Contrast | ||
| Dynamic contrast | 3,000,000:1 | 3,000,000:1 |
| Colour | ||
| Colour bit depth (per channel) | 10 bit | 10 bit |
| HDR | ||
| HDR formats | HDR10, HLG | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | Frame packing, Side-by-side, Top-bottom | Frame packing, Side-by-side, Top-bottom |
| 3D glasses sync | DLP-Link | DLP-Link |
| Light source | ||
| Light source | Laser (phosphor) | Laser (phosphor) |
| Emitter | Blue laser + phosphor | — |
| Light engine | DuraCore | — |
| Light-source life | 30,000 h | 30,000 h |
| Light output control | Steps | Steps |
| Optics | ||
| Throw ratio | 1.48–1.62:1 | 1.4–2.24:1 |
| Image size | 30–300 in | 30–300 in |
| Projection offset | 116% | 116% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.09×Derived | 1.6×Derived |
| Focal length | 21.86–24 mm | 20.91–32.62 mm |
| Aperture (f-number) | 2.5–2.67 | 2.5–3.26 |
| Focus | Manual | Manual |
| Autofocus | No | No |
| Vertical keystone | 30° | 30° |
| Horizontal keystone | 30° | 30° |
| Corner correction | 4-corner | 4-corner |
| Motion & gaming | ||
| 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 | 2 × HDMI 2.0 | 2 × HDMI 2.0 |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 2.0Derived |
| Other video inputs | VGA | VGA |
| Max input resolution | 4K UHD | 4K UHD |
| Audio inputs | 3.5 mm | 3.5 mm |
| Control ports | RS-232, 12 V trigger | RS-232, 12 V trigger |
| PJLink | Class 1 | Class 2 |
| Control-system drivers | Crestron | Crestron, + AMX |
| Horizontal scan | 15–135 kHz | 15–135 kHz |
| Vertical scan | 24–120 Hz | 24–120 Hz |
| Smart platform | ||
| Ethernet | Yes | Yes |
| Audio | ||
| Speaker power | 15 W | 15 W |
| Speakers | 1 | 1 |
| Layout | — | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 274 × 216 × 114 mm | 274 × 216 × 114 mm |
| Weight | 2,900 g | 2,998 g |
| Colours | White | — |
| Orientations | Portrait, 360° | + Table, + Ceiling, + Rear, Portrait, 360° |
| Ceiling mount | — | M4, screws ≥ 10 mm |
| Ingress protection | IP6X | IP6X |
| Sealed optical engine | Yes | — |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | — | 0–80%RH |
| Altitude | 3,048 m | 2,500 m · high-altitude mode |
| Power draw | Max 170 W · Normal 170 W · Eco 120 W | Max 170 W · Eco 120 W |
| Standby | 0.5 W | Up to 0.5 W |
| Power supply | External adapter | External adapter |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Normal 31 dB(A) · Eco 29 dB(A) | Max 31 dB(A) · Eco 29 dB(A) |
| Safety & compliance | ||
| Laser class | Class 1 | Class 1 |
| Risk group | RG2 | RG2 |
| Marks | FCC | FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 1 yr · 🇫🇷 FR 5 yr | — |
| User manual | https://region-resource.optoma.com/products/documents/amVEXNMY0TqA9e6pFYo8iyCWQCiLznAEwmaBKoWh.pdf | https://region-resource.optoma.com/products/documents/mpTwkm9mUWvfsgMhppFmV04EqeoeeRYWmvKy7tBF.pdf |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, + Quick start guide | Power cord, Remote, Remote batteries, + User manual |
| Remote | IR | — |