BenQ GV31 vs ViewSonic M1+
 MSRP $599 |  ViewSonic M1+MSRP $339 | |
|---|---|---|
| Key differences | ||
| White light output | 300 lm ANSI | — |
| Native resolution | 1080p (1920 × 1080) | 480p (854 × 480) |
| Lowest input lag | 45 msDerived | 33 msDerived |
| Fan noise | Normal 28 dB(A) · Eco 26 dB(A) | Normal 26 dB(A) · Eco 25 dB(A) |
| Price | MSRP $599 | MSRP $339 |
| Room fit | ||
| Distance to screen | 2.7 m | 2.7 m |
| Brightness | ||
| Rated brightness | 300 lmDerived | — |
| White light output | 300 lm ANSI | — |
| Claimed brightness (non-standard) | — | 300 lm (LED lumens) |
| Display system | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | 0.23 in | 0.2 in |
| On-screen resolution | 1080p (1920 × 1080)Derived | 480p (854 × 480)Derived |
| Native resolution | 1080p (1920 × 1080) | 480p (854 × 480) |
| Native aspect | 16:9Derived | 16:9Derived |
| Contrast | ||
| Dynamic contrast | 100,000:1 | 120,000:1 |
| Colour | ||
| Colour gamut | Rec. 709 98% coverage | Rec. 709 125% |
| Colour bit depth (per channel) | 8 bit | 10 bit |
| 3D | ||
| 3D | — | Yes |
| Light source | ||
| Light source | LED | LED |
| Emitter | — | RGB LED |
| Light-source life | 20,000 h normal · 30,000 h eco | 30,000 h normal · 30,000 h dynamic |
| Optics | ||
| Throw ratio | 1.2:1 | 1.2:1 |
| Image size | 30–120 in | 24–100 in |
| Projection offset | 100% | About 100% |
| Zoom | None | None |
| Focal length | 6.26 mm | 5.5 mm |
| Aperture (f-number) | 1.7 | 1.7 |
| Focus | — | Manual |
| Autofocus | Yes | Yes |
| Vertical lens shift | — | None |
| Vertical keystone | 40° | 40° |
| Auto keystone | Yes | Yes |
| Interchangeable lens | — | No |
| Motion & gaming | ||
| Input lag | 1080p: 60 Hz 45 ms | 1080p: 60 Hz 33 ms |
| Lowest input lag | 45 msDerived | 33 msDerived |
| Inputs & control | ||
| HDMI inputs | HDMI 1.4 (HDCP 1.4) · HDMI 1.4 (HDCP 1.4, internal) | HDMI 1.4 (HDCP 1.4) |
| HDMI inputs (count) | 1Derived | 1Derived |
| Newest HDMI version | HDMI 1.4Derived | HDMI 1.4Derived |
| Other video inputs | USB-C (DisplayPort) | — |
| Max input resolution | 1080p | 1080p |
| USB media playback | Yes | Yes |
| Horizontal scan | 25–85 kHz | 15–135 kHz |
| Vertical scan | 22–62 Hz | 23–120 Hz |
| Smart platform | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 4 |
| Bluetooth | 5.0 | — |
| Smart platform | Android TV | — |
| OS version | 11 | — |
| Google-certified | Yes | — |
| Storage | — | 12 GB |
| Security updates until | 31 Dec 2026 | — |
| Netflix | Via dongle | — |
| Casting | Chromecast built-in | — |
| Audio | ||
| Speaker power | Up to 16 W | 3 W |
| Speakers | 2 | 2 |
| Layout | 2.1 | Stereo |
| Tuned by | — | Harman Kardon |
| Audio outputs | 3.5 mm, + Bluetooth | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Bluetooth speaker mode | Yes | Yes |
| Physical & installation | ||
| Dimensions (W × D × H) | 131 × 191 × 203 mm | 146 × 126 × 40 mm |
| Weight | 1,700 g | 750 g |
| Orientations | Table, Ceiling, Rear | — |
| Built-in stand | Base, 135° tilt | — |
| Tripod socket | Yes | — |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | 0–90%RH |
| Altitude | 2,000 m | — |
| Power draw | 45 W | 45 W |
| Standby | — | Up to 0.5 W |
| Power supply | External adapter | — |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V |
| DC input | — | 19 V |
| Battery | — | 44.4 Wh |
| Battery runtime | About 180 min | Up to 360 min |
| Noise | ||
| Fan noise | Normal 28 dB(A) · Eco 26 dB(A) | Normal 26 dB(A) · Eco 25 dB(A) |
| Safety & compliance | ||
| Eye-protection sensor | — | Yes |
| Marks | — | CE, FCC, UL |
| Support & ownership | ||
| Warranty | 3 yr | 3 yr |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/GV31/GV31_UM_EN_230616163647.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/Projector/M1PLUS/M1PLUS_UG_ENG.pdf |
| In the box | ||
| In the box | Power cord, + Power adapter, Remote, + Remote batteries, Quick start guide, + Warranty card | Power cord, Remote, Quick start guide, + USB cable |