- Attenborough.film
- Compare
- UHD55 vs UHZ45
Optoma UHD55 vs Optoma UHZ45
What UHD55 does better (3) and where UHZ45 wins (6) — every spec side by side.
Why is UHD55 better than UHZ45?
- Lens shiftVertical vs None
- Ethernet (LAN)Yes · UHZ45: No
- Fan noise28 dB vs 29 dB+4%
Why is UHZ45 better than UHD55?
- Light source life4,000 h vs 30,000 h7.5×
- Built-in speakers (total output)10 W vs 20 W2×
- Brightness (ANSI / ISO lumens)3,600 lm vs 3,800 lm+6%
- Contrast ratio (dynamic / claimed)1,200,000:1 vs 2,000,000:1+67%
- HDMI inputs2 vs 3+50%
- Power consumption317 W vs 230 W+38%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | 4K by pixel shifting | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | — | Laser |
| Brightness (ANSI / ISO lumens) | 3,600 lm | 3,800 lm |
| Contrast ratio (dynamic / claimed) | 1,200,000:1 | 2,000,000:1 |
| HDR support | Yes | — |
| HDR formats | HLG | — |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Lens & placement | ||
| Throw ratio | 1.21:1 | 1.5:1 |
| Throw ratio (zoomed in) | 1.59:1 | 1.66:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.68 m | 3.32 m |
| Largest image size | 300″ | 300″ |
| Lens shift | Vertical | None |
| Keystone correction | — | Yes |
| Automatic keystone correction | — | No |
| Sound | ||
| Built-in speakers (total output) | 10 W | 20 W |
| Connectivity | ||
| HDMI inputs | 2 | 3 |
| HDMI version | 2 | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | No |
| VGA input | Yes | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 317 W | 230 W |
| Light source life | 4,000 h | 30,000 h |
| Light source life (eco mode) | 10,000 h | — |
| Design & noise | ||
| Fan noise | 28 dB | 29 dB |
| Fan noise (eco mode) | 25 dB | 27 dB |
| Weight | — | 4.8 kg |
| Width | — | 337 mm |
| Height | — | 120 mm |
| Depth | — | 265 mm |
| Colours | White | White |
