Goiaey GO2 vs Optoma UHZ35ST
| Goiaey GO2 $289.99 |  Optoma UHZ35ST$2,199 | |
|---|---|---|
| Key differences | ||
| White light output | 3,500 lm ANSI | 3,500 lm ISO |
| Throw ratio | 1:1 | 0.5:1 |
| Lowest input lag | — | 4.4 msDerived |
| HDR formats | — | HDR10, HLG |
| Light source | LED | Laser (phosphor) |
| Fan noise | — | Normal 35 dB(A) · Eco 28 dB(A) |
| Price | $289.99 | $2,199 |
| Room fit | ||
| Distance to screen | 2.2 m | 1.1 m |
| Brightness | ||
| Rated brightness | 3,500 lmDerived | 3,500 lmDerived |
| White light output | 3,500 lm ANSI | 3,500 lm ISO |
| Claimed brightness (non-standard) | — | 3,500 lm |
| Brightness uniformity | — | 75% |
| Display system | ||
| Imaging technology | Single-panel LCD | DLP |
| Chip / panel diagonal | — | 0.65 in |
| On-screen resolution | 1080p (1920 × 1080)Derived | 4K UHD (3840 × 2160)Derived |
| Native resolution | 1080p (1920 × 1080) | 1080p (1920 × 1080) |
| Native aspect | 16:9Derived | 16:9Derived |
| Pixel shift | — | XPR 4-way |
| Addressable resolution | — | 4K UHD (3840 × 2160) |
| Contrast | ||
| Dynamic contrast | — | 500,000:1 |
| Colour | ||
| Colour bit depth (per channel) | — | 10 bit |
| Gamma / EOTF presets | — | 2.2, 2.4 |
| HDR | ||
| HDR formats | — | HDR10, HLG |
| Calibration | ||
| Colour management (CMS) | — | 6-axis |
| 3D | ||
| 3D | — | Yes |
| 3D formats | — | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| 3D glasses sync | — | DLP-Link |
| Light source | ||
| Light source | LED | Laser (phosphor) |
| Emitter | — | Blue laser + phosphor |
| Light engine | — | DuraCore |
| Light-source life | — | 30,000 h |
| Light output control | — | Steps |
| Cool-down time | — | 90 s |
| Optics | ||
| Throw ratio | 1:1 | 0.5:1 |
| Image size | — | 36–300 in |
| Projection offset | — | 116% |
| Zoom | — | None |
| Focal length | — | 7.51 mm |
| Aperture (f-number) | — | 2.8 |
| Focus | — | Manual |
| Autofocus | — | No |
| Vertical lens shift | — | None |
| Horizontal lens shift | — | None |
| Vertical keystone | — | 15° |
| Horizontal keystone | — | 15° |
| Grid warp | — | Yes |
| Auto setup | Fit to screen | — |
| Motion & gaming | ||
| Max input refresh | — | 1080p: 240 Hz · 4K UHD: 60 Hz |
| Max refresh at 1080p | — | 240 HzDerived |
| Max refresh at 4K | — | 60 HzDerived |
| Input lag | — | 1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 240 Hz 4.4 ms · 4K UHD: 60 Hz 16.9 ms |
| Lowest input lag | — | 4.4 msDerived |
| Input lag at 4K 60 Hz | — | 16.9 msDerived |
| Inputs & control | ||
| HDMI inputs | — | HDMI 2.0 · HDMI 2.0 (eARC) |
| HDMI inputs (count) | — | 2Derived |
| Newest HDMI version | — | HDMI 2.0Derived |
| Max input resolution | — | DCI 4K |
| Control ports | — | RS-232 |
| Control-system drivers | — | Crestron |
| Horizontal scan | — | 15–140 kHz |
| Vertical scan | — | 24–240 Hz |
| Smart platform | ||
| Wi-Fi | Wi-Fi 6 | None |
| Ethernet | — | Yes |
| Smart platform | — | None |
| Audio | ||
| Speaker power | — | 15 W |
| Speakers | — | 1 |
| Layout | — | Mono |
| Audio outputs | — | 3.5 mm, HDMI eARC |
| HDMI audio return | — | eARCDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | — | 274 × 216 × 114 mm |
| Weight | — | 3,000 g |
| Colours | — | White |
| Orientations | — | Portrait, 360° |
| Ceiling mount | — | M4, 10 mm screws |
| Ingress protection | — | IP6X |
| Environment & power | ||
| Operating temperature | — | 0–40°C |
| Altitude | — | 762 m · high-altitude mode |
| Power draw | — | Max 185 W · Normal 185 W · Eco 126 W |
| Standby | — | Up to 0.5 W |
| Networked standby | — | Up to 2 W |
| Power supply | — | External adapter |
| Mains input | — | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | — | Normal 35 dB(A) · Eco 28 dB(A) |
| Safety & compliance | ||
| Laser class | — | Class 1 |
| 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/fafrOEdwat8KymDO94ZUVxn0eamb2y1Mrnyffkol.pdf |
| Firmware | — | UHZ35ST_C12_FW_OneClick |
| In the box | ||
| In the box | — | Power cord, Remote, Remote batteries, Quick start guide |
| Remote | — | IR |