ViewSonic LS831WU vs ViewSonic PA700X
 MSRP $2,500 | MSRP $399 | |
|---|---|---|
| Key differences | ||
| Native resolution | WUXGA (1920 × 1200) | 1024 × 768 |
| Throw ratio | 0.25:1 | 1.94–2.16:1 |
| Light source | Laser (phosphor) | Lamp |
| Price | MSRP $2,500 | MSRP $399 |
| Room fit | ||
| Distance to screen | 0.54 m | 3.9–4.4 m |
| Brightness | ||
| Rated brightness | 4,500 lmDerived | 4,500 lmDerived |
| White light outputANSI | 4,500 lm ANSI | 4,500 lm ANSI |
| Display system | ||
| Imaging technology | DLP | DLP |
| On-screen resolution | WUXGA (1920 × 1200)Derived | 1024 × 768Derived |
| Native resolution | WUXGA (1920 × 1200) | 1024 × 768 |
| Native aspect | 16:10Derived | 4:3Derived |
| Contrast | ||
| Dynamic contrast | 3,000,000:1 | 22,000:1 |
| Colour | ||
| Colour bit depth (per channel) | — | 10 bit |
| Calibration | ||
| Picture mode memories | 2 | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | + Frame packing, + Side-by-side, + Top-bottom, Frame sequential | Frame sequential |
| 3D glasses sync | — | DLP-Link |
| Light source | ||
| Light source | Laser (phosphor) | Lamp |
| Emitter | Blue laser + phosphor | — |
| Lamp power | — | 240 W |
| Replacement lamp | — | RLC-128 |
| Light-source life | 20,000 h | 4,000 h normal · 12,000 h dynamic |
| Optics | ||
| Throw ratio | 0.25:1 | 1.94–2.16:1 |
| Image size | 70–200 in | 30–300 in |
| Zoom | None | Optical |
| Zoom ratio | — | 1.11×Derived |
| Focus | Manual | Manual |
| Vertical lens shift | None | None |
| Horizontal lens shift | None | None |
| Vertical keystone | 5° | 40° |
| Horizontal keystone | 5° | — |
| Auto keystone | — | Yes |
| Corner correction | 4-corner | — |
| Interchangeable lens | No | No |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI 2.0 (HDCP 2.2) | 2 × HDMI 1.4 (HDCP 1.4) |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 1.4Derived |
| Other video inputs | VGA, + Composite, + HDBaseT | VGA |
| Max input resolution | 4K UHD | 1080p |
| Audio inputs | 3.5 mm, + RCA | 3.5 mm |
| Control ports | RS-232, + 12 V trigger | RS-232 |
| Control-system drivers | Crestron, AMX | — |
| Horizontal scan | 15–102 kHz | 15–102 kHz |
| Vertical scan | 23–120 Hz | 23–120 Hz |
| Smart platform | ||
| Ethernet | Yes | — |
| Audio | ||
| Speaker power | 20 W | 3 W |
| Speakers | 2 | 1 |
| Layout | Stereo | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 492 × 387 × 157 mm | 309 × 234 × 115 mm |
| Weight | 9,900 g | 2,700 g |
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Ceiling mount | M4, 12.8–15.8 mm screws | M4, screws ≤ 7 mm |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | 10–80%RH |
| Altitude | 3,000 m · high-altitude mode | 3,657 m |
| Power draw | 504 W | 300 W |
| Standby | Up to 0.5 W | Up to 0.5 W |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Safety & compliance | ||
| Laser class | Class 1 | — |
| Marks | + FCC | + CE |
| Support & ownership | ||
| Warranty | 3 yr | 3 yr (light source 1 yr) |
| User manual | https://www.viewsonicglobal.com/public/products_download/user_guide/Projector/LS831WU/LS831WU_UG_ENG.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/PA700S_PA700X_PA700W_PS502X_PS502W/PA700S_PA700X_PA700W_PS502X_PS502W_UG_ENG.pdf |
| Spare parts | — | Lamp RLC-128 |
| In the box | ||
| In the box | Power cord, Remote, Quick start guide, VGA cable | Power cord, Remote, + Remote batteries, Quick start guide, VGA cable |
| Remote | IR | — |