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- HD29HST vs UHD42
Optoma HD29HST vs Optoma UHD42
What HD29HST does better (3) and where UHD42 wins (4) — every spec side by side.
Dimensions
Size comparison
HD29HSTUHD42
| HD29HST | UHD42 | Difference | |
|---|---|---|---|
| Height | 108 mm | 118 mm | −10 mm |
| Width | 316 mm | 315 mm | +1 mm |
| Depth | 244 mm | 270 mm | −26 mm |
| Weight | 3 kg | 3.9 kg | −0.9 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is HD29HST better than UHD42?
- Brightness (ANSI / ISO lumens)4,000 lm vs 3,400 lm+18%
- Weight3 kg vs 3.9 kg+30%
- Power consumption285 W vs 305 W+7%
Why is UHD42 better than HD29HST?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Lens shiftNone vs Vertical
- Contrast ratio (dynamic / claimed)50,000:1 vs 500,000:110×
- 4K method4K input only (downscaled) vs 4K by pixel shifting
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | 4K input only (downscaled) | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Brightness (ANSI / ISO lumens) | 4,000 lm | 3,400 lm |
| Contrast ratio (dynamic / claimed) | 50,000:1 | 500,000:1 |
| HDR support | Yes | Yes |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | 120 Hz | 120 Hz |
| Game / low-latency mode | Yes | — |
| Lens & placement | ||
| Throw ratio | 0.49:1 | 1.21:1 |
| Throw ratio (zoomed in) | — | 1.59:1 |
| Throw type | Short throw (0.4–1.0:1) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 1.08 m | 2.68 m |
| Smallest image size | 36″ | 34″ |
| Largest image size | 307″ | 302″ |
| Optical zoom | — | 1.3× |
| Lens shift | None | Vertical |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | No | No |
| Sound | ||
| Built-in speakers (total output) | 10 W | 10 W |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| HDMI version | 2 | — |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | Yes | Yes |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 285 W | 305 W |
| Light source life | — | 4,000 h |
| Light source life (eco mode) | 15,000 h | 15,000 h |
| Design & noise | ||
| Fan noise | 26 dB | 26 dB |
| Weight | 3 kg | 3.9 kg |
| Width | 316 mm | 315 mm |
| Height | 108 mm | 118 mm |
| Depth | 244 mm | 270 mm |
| Colours | White | White |
