ViewSonic LS901-4K vs ViewSonic LSD500HD
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
| ViewSonic LS901-4K MSRP $3,699 |  ViewSonic LSD500HDMSRP $1,049.99 | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | DLP |
| Technology brand | DLP | DLP |
| Number of imaging devices | 1 | 1 |
| Chip / panel diagonal | 0.65 in | 0.65 in |
| Native aspect ratio | 16:9 | 16:9 |
| Native resolution | — | 1920 × 1080 |
| Pixel shift | — | None |
| Addressable resolution | 3840 × 2160 | — |
| Optics | ||
| Throw ratio | 1.2–2.04:1 | 1.13–1.47:1 |
| Projection distance table | 30″: 0.8–1.36 m · 40″: 1.06–1.81 m · 50″: 1.33–2.26 m · 60″: 1.59–2.71 m · 70″: 1.86–3.16 m · 80″: 2.13–3.61 m · 90″: 2.39–4.07 m · 100″: 2.66–4.52 m · 110″: 2.92–4.97 m · 120″: 3.19–5.42 m · 130″: 3.45–5.87 m · 140″: 3.72–6.32 m · 150″: 3.99–6.77 m · 200″: 5.31–9.03 m · 250″: 6.64–11.29 m · 300″: 7.97–13.55 m | 30″: 0.75–0.98 m · 40″: 1–1.3 m · 50″: 1.25–1.63 m · 60″: 1.5–1.95 m · 70″: 1.75–2.28 m · 80″: 2–2.6 m · 90″: 2.25–2.93 m · 100″: 2.5–3.25 m · 110″: 2.75–3.58 m · 120″: 3–3.91 m · 130″: 3.25–4.23 m · 140″: 3.5–4.56 m · 150″: 3.75–4.88 m · 200″: 5–6.51 m · 250″: 6.25–8.14 m · 300″: 7.51–9.76 m |
| Zoom type | Optical | Optical |
| Zoom ratio | 1.7× | 1.3× |
| Focus | Manual | Manual |
| Vertical lens shift | -21–0% | 0% |
| Horizontal lens shift | — | 0% |
| Motorized lens shift | — | No |
| Fixed offset | 154% | 132% |
| Focal length | 17.63–27.9 mm | 16.9–21.61 mm |
| F-number | 2.3–3 | 2.43–2.78 |
| Image size range | 30–300 in | 30–300 in |
| Vertical keystone | -30–30° | -30–30° |
| Horizontal keystone | -30–30° | -30–30° |
| Corner / warp correction | Warp | 4pt |
| Light source | ||
| Light source type | Laser (phosphor) | Laser (phosphor) |
| Light source detail | — | Third-generation laser phosphor engine (blue diode lasers, phosphor wheel and colour wheel) |
| Light source life | Normal: 20,000 h · Super eco: 30,000 h | Normal: 20,000 h · Eco: 30,000 h |
| Warm-up time | — | 24.9 sMeasured |
| Cool-down time | — | 2.2 sMeasured |
| Light-source dimming | Dynamic frame | Dynamic frame |
| Brightness | ||
| ANSI lumens | 5,500 lm | 5,500 lm |
| Claimed brightness (non-standard) | 6,000 | 6,000 |
| Claimed brightness unit | Unspecified | Peak lumens |
| Brightness by mode | — | Brightest: 5,192 lm · Presentation: 2,743 lm · Movie: 2,225 lm · Gaming: 2,743 lm · Golf: 2,786 lmMeasured |
| Contrast & black level | ||
| Dynamic contrast | 3,000,000:1 | 3,000,000:1 |
| Dynamic light control | Laser dimming | Laser dimming |
| Colour | ||
| Bit depth / 'number of colours' | 30 bit | 30 bit |
| Calibration & picture control | ||
| Colour management system | — | 6-axis |
| HDR | ||
| HDR formats | HDR10, HLG | HDR10, HLG |
| Max HDR input | — | 3840x2160 at 60 Hz (HDR10, HLG) |
| Motion & gaming | ||
| Max refresh rate | 1920×1080: 240 Hz · 2560×1440: 120 Hz · 3840×2160: 60 Hz | 1280×720: 120 Hz |
| Input lag (rated) | — | 1920×1080 @ 60 Hz: 16.4 msMeasured |
| Audio | ||
| Speaker power | 30 W | 15 W |
| Speaker count | 2 | 1 |
| Audio channels | — | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| Inputs, control & connectivity | ||
| Max input signal | 3840 × 2160 | 3840 × 2160 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI 1: HDMI 2.0, HDCP 2.3; HDMI 2: HDMI 2.0, HDCP 2.3 | HDMI 1: HDMI 2.0, HDCP 2.2; HDMI 2: HDMI 2.0, HDCP 2.2 |
| Horizontal scan frequency | 15–255 kHz | 15–135 kHz |
| Vertical scan frequency | 23–240 Hz | 24–120 Hz |
| HDBaseT | — | No |
| VGA input | — | No |
| USB media playback | No | No |
| RS-232 | Yes | Yes |
| LAN control | Yes | Yes |
| Control ecosystem drivers | Crestron | Crestron |
| Wi-Fi | — | None |
| Ethernet | Yes | Yes |
| 3D | ||
| 3D support | Yes | Yes |
| 3D sync method | DLP-Link | DLP-Link |
| 3D formats | Side-by-side, Top-bottom, Frame sequential | Frame sequential, Frame packing, Side-by-side, Top-bottom |
| Setup automation | ||
| Autofocus | — | None |
| Acoustic noise | ||
| Fan noise (sound pressure) | Normal: 31 dB(A) · Eco: 25 dB(A) | Normal: 32 dB(A) · Eco: 27 dB(A) |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–80%RH | 10–80%RH |
| Altitude / high-altitude mode | 3,658 m | 3,658 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Ceiling, Rear | Table, Ceiling, Rear, Portrait, 360° |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | — | 167 WMeasured |
| Power consumption by mode | Normal: 245 W | Normal: 165 W |
| Standby power | 0.5 W | 0.5 W |
| Power supply | — | External brick |
| Physical & installation | ||
| Width | 337 mm | 286 mm |
| Depth | 280 mm | 216 mm |
| Height | 132 mm | 129 mm |
| Weight | 4.85 kg | 2.9 kg |
| Colours / finishes | White | White |
| Mount hole pattern | — | Thread: M4 · Max screw length mm: 8 |
| Sealed optical engine | Yes | Yes |
| Air filter | None | None |
| Safety & compliance | ||
| Photobiological risk group | RG2 | RG2 |
| Hazard distance | 1 m | 1 m |
| Laser product class | Class 1 | Class 1 |
| Safety & market certifications | CE, FCC | CE, FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 3 yr | 🇺🇸 US 3 yr |
| Light-source warranty | — | 1 year (original light source, North and South America); 90 days under heavy usage over 14 hours a day |
| User manual | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LS901HD_LS901-4K/LS901HD_LS901-4K_UG_ENG.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD500HD/LSD500HD_V53HD_LS740HD-5_V52HD-5_LSD600W_LS740W-5_UG_ENG.pdf |
| In the box | ||
| Box contents | Projector, Remote, Batteries, Quick start guide, Power cord | Projector, Remote, Batteries, Quick start guide, Power cord, Power adapter |
| Remote type | IR | IR |