Optoma ZH521 vs Optoma ZW521
 |  Optoma ZW521 | |
|---|---|---|
| Key differences | ||
| White light outputISO | 5,500 lm ISO | 6,000 lm ISO |
| Native resolution | 1080p (1920 × 1080) | WXGA (1280 × 800) |
| Throw ratio | 1.13–1.47:1 | 1.18–1.54:1 |
| Lowest input lag | 8.6 msDerived | — |
| HDR formats | HDR10, HLG | — |
| Fan noise | Normal 35 dB(A) · Eco 29 dB(A) | Normal 29 dB(A) · Eco 29 dB(A) |
| Room fit | ||
| Distance to screen | 2.5–3.3 m | 2.5–3.3 m |
| Brightness | ||
| Rated brightness | 5,500 lmDerived | 6,000 lmDerived |
| White light outputISO | 5,500 lm ISO | 6,000 lm ISO |
| Brightness uniformity | 75% | 75% |
| Display system | ||
| Imaging technology | DLP | DLP |
| On-screen resolution | 1080p (1920 × 1080)Derived | WXGA (1280 × 800)Derived |
| Native resolution | 1080p (1920 × 1080) | WXGA (1280 × 800) |
| Native aspect | 16:9Derived | 16:10Derived |
| Contrast | ||
| Dynamic contrast | 3,000,000:1 | 300,000:1 |
| Colour | ||
| Colour bit depth (per channel) | — | 10 bitDerived |
| 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 |
| Light source | ||
| Light source | Laser (phosphor) | Laser (phosphor) |
| Emitter | Blue laser + phosphor | Blue laser + phosphor |
| Light-source life | 30,000 h eco | 30,000 h eco |
| Optics | ||
| Throw ratio | 1.13–1.47:1 | 1.18–1.54:1 |
| Image size | 30–306 in | 30–300 in |
| Projection offset | 116% | 112% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.3×Derived | 1.31×Derived |
| Focal length | 16.9–21.6 mm | 16.9–21.6 mm |
| Aperture (f-number) | 2.43–2.78 | — |
| Vertical keystone | 30° | 30° |
| Horizontal keystone | 30° | 30° |
| Corner correction | 4-corner | 4-corner |
| Motion & gaming | ||
| Input lag | 1080p: 60 Hz 16.7 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.7 ms | — |
| Lowest input lag | 8.6 msDerived | — |
| Input lag at 4K 60 Hz | 16.7 msDerived | — |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI 2.0 | 2 × HDMI 1.4 |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 1.4Derived |
| Other video inputs | VGA | VGA |
| Max input resolution | DCI 4K | — |
| Audio inputs | 3.5 mm | 3.5 mm |
| Control ports | RS-232, 12 V trigger | RS-232, 12 V trigger |
| Horizontal scan | 15–135 kHz | 15–102 kHz |
| Vertical scan | 24–120 Hz | 24–120 Hz |
| Audio | ||
| Speaker power | 15 W | 15 W |
| Speakers | 1 | 1 |
| 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 mmDerived |
| Weight | 2,900 g | 2,900 g |
| Orientations | + Table, + Ceiling, + Rear, Portrait, 360° | Portrait, 360° |
| Dust filter | None | — |
| Ingress protection | IP6X (light engine) | — |
| Sealed optical engine | Yes | — |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Altitude | 2,500 m | 3,048 m |
| Power draw | Max 210 W · Eco 147 W | Max 210 W · Eco 150 W |
| Standby | Up to 0.5 W | Up to 0.5 W |
| Power supply | External adapter | — |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Normal 35 dB(A) · Eco 29 dB(A) | Normal 29 dB(A) · Eco 29 dB(A) |
| Safety & compliance | ||
| Risk group | RG2 | RG2 |
| Marks | FCC | — |
| Support & ownership | ||
| Warranty | 5 yr or 12,000 h | — |
| User manual | https://region-resource.optoma.com/products/documents/K9MwpgPSz59vAXkTCNNs6i6XlKNiiRBCCcHAz398.pdf | https://region-resource.optoma.com/products/documents/v7yJFGdU4BR7x2iwjoSdhOZu6xxkQ55F64vBbmwO.pdf |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, Quick start guide | Power cord, Remote, Remote batteries, Quick start guide |