Goiaey GO2 vs Optoma HL31LV
| Goiaey GO2 $289.99 |  Optoma HL31LV | |
|---|---|---|
| Key differences | ||
| White light output | 3,500 lm ANSI | 3,500 lm ISO |
| Throw ratio | 1:1 | 1.49–1.64:1 |
| Lowest input lag | — | 8.4 msDerived |
| HDR formats | — | HLG |
| Fan noise | — | Max 35 dB(A) · Eco 29 dB(A) |
| Price | $289.99 | — |
| Room fit | ||
| Distance to screen | 2.2 m | 3.3–3.6 m |
| Brightness | ||
| Rated brightness | 3,500 lmDerived | 3,500 lmDerived |
| White light output | 3,500 lm ANSI | 3,500 lm ISO |
| Brightness uniformity | — | 85% |
| Display system | ||
| Imaging technology | Single-panel LCD | 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 | — | 300,000:1 |
| Colour | ||
| Colour bit depth (per channel) | — | 10 bit |
| Gamma / EOTF presets | — | 2.2, 2.4 |
| HDR | ||
| HDR formats | — | HLG |
| Calibration | ||
| Colour management (CMS) | — | 6-axis |
| Picture certifications | — | ISF |
| 3D | ||
| 3D | — | Yes |
| 3D formats | — | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| 3D glasses sync | — | DLP-Link |
| Light source | ||
| Light source | LED | LED |
| Light-source life | — | Up to 30,000 h eco |
| Light output control | — | Steps |
| Optics | ||
| Throw ratio | 1:1 | 1.49–1.64:1 |
| Image size | — | 30–300 in |
| Projection offset | — | 103% |
| Zoom | — | Optical |
| Zoom ratio | — | 1.1×Derived |
| Focal length | — | 22–24.1 mm |
| Aperture (f-number) | — | 2.4–2.5 |
| Focus | — | Manual |
| Vertical keystone | — | 30° |
| Horizontal keystone | — | 30° |
| Corner correction | — | 4-corner |
| Auto setup | Fit to screen | — |
| Motion & gaming | ||
| Max input refresh | — | 1080p: 120 Hz · 4K UHD: 60 Hz |
| Max refresh at 1080p | — | 120 HzDerived |
| Max refresh at 4K | — | 60 HzDerived |
| Input lag | — | 1080p: 60 Hz 16.7 ms · 120 Hz 8.4 ms · 4K UHD: 60 Hz 33.7 ms |
| Lowest input lag | — | 8.4 msDerived |
| Input lag at 4K 60 Hz | — | 33.7 msDerived |
| Inputs & control | ||
| HDMI inputs | — | 2 × HDMI 2.0 |
| HDMI inputs (count) | — | 2Derived |
| Newest HDMI version | — | HDMI 2.0Derived |
| Other video inputs | — | VGA |
| Max input resolution | — | DCI 4K |
| Audio inputs | — | 3.5 mm |
| Control ports | — | RS-232 |
| PJLink | — | Class 2 |
| Control-system drivers | — | Crestron, AMX |
| Horizontal scan | — | 15–135 kHz |
| Vertical scan | — | 24–120 Hz |
| Smart platform | ||
| Wi-Fi | Wi-Fi 6 | — |
| Ethernet | — | Yes |
| Audio | ||
| Speaker power | — | 10 W |
| Speakers | — | 1 |
| Layout | — | Mono |
| Audio outputs | — | 3.5 mm |
| HDMI audio return | — | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | — | 307 × 228 × 125 mm |
| Weight | — | 3,100 g |
| Orientations | — | Table, Ceiling, Rear, Portrait, 360° |
| Built-in stand | — | Foot |
| Ceiling mount | — | M4, screws ≥ 10 mm |
| Environment & power | ||
| Operating temperature | — | 0–40°C |
| Altitude | — | 3,048 m · high-altitude mode |
| Power draw | — | Normal 226 W · Eco 130 W |
| Standby | — | Up to 0.5 W |
| Mains input | — | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | — | Max 35 dB(A) · Eco 29 dB(A) |
| Safety & compliance | ||
| Risk group | — | RG2 |
| Marks | — | FCC |
| Support & ownership | ||
| Warranty | — | 1 yr (light source 5 yr or 12,000 h) |
| User manual | — | https://region-resource.optoma.com/products/documents/TbSJrephJwwjUrSZCJ00GyX2mbidYpGRwtjMXOZQ.pdf |
| In the box | ||
| In the box | — | Power cord, Remote, Remote batteries, Quick start guide |
| Remote | — | IR · backlit |