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- Cosmos 4K SE vs UHZ55
Nebula Cosmos 4K SE vs Optoma UHZ55
What Cosmos 4K SE does better (4) and where UHZ55 wins (5) — every spec side by side.
vs
4.9Picture6.3
9.2Setup & placement3.9
9.2Smart features & sound9.6
7.9Noise, lifetime & portability8.3
Dimensions
Size comparison
Cosmos 4K SEUHZ55
| Cosmos 4K SE | UHZ55 | Difference | |
|---|---|---|---|
| Height | 221 mm | 120 mm | +101 mm |
| Width | 264 mm | 337 mm | −73 mm |
| Depth | 165 mm | 265 mm | −100 mm |
| Weight | 4.5 kg | 4.8 kg | −0.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Cosmos 4K SE better than UHZ55?
- Automatic keystone correctionYes · UHZ55: No
- Built-in speakers (total output)30 W vs 20 W+50%
- HDR supportYes · UHZ55: No
- Weight4.5 kg vs 4.8 kg+7%
Why is UHZ55 better than Cosmos 4K SE?
- Brightness (ANSI / ISO lumens)1,800 lm vs 3,000 lm+67%
- HDMI inputs1 vs 33×
- Ethernet (LAN)No · Cosmos 4K SE: Yes
- Fan noise30 dB vs 29 dB+3%
- Largest image size200″ vs 300″+50%
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 + LED hybrid | Laser |
| Brightness (ANSI / ISO lumens) | 1,800 lm | 3,000 lm |
| Contrast ratio (dynamic / claimed) | — | 2,500,000:1 |
| HDR support | Yes | No |
| HDR formats | HDR10, HLG, Dolby Vision | — |
| Dolby Vision | Yes | — |
| 3D playback | — | Yes |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Game / low-latency mode | Yes | Yes |
| Lens & placement | ||
| Throw ratio | 1.2:1 | 1.21:1 |
| Throw ratio (zoomed in) | — | 1.59:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.66 m | 2.68 m |
| Smallest image size | 50″ | 35″ |
| Largest image size | 200″ | 300″ |
| Optical zoom | — | 1.3× |
| Lens shift | — | None |
| Autofocus | Yes | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 30 W | 20 W |
| Smart & streaming | ||
| Smart platform | Google TV | — |
| Built-in smart platform | Yes | Yes |
| Netflix (officially licensed) | Yes | — |
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | — |
| Chromecast built-in | Yes | — |
| Internal storage | 16 GB | — |
| Connectivity | ||
| HDMI inputs | 1 | 3 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | — | 230 W |
| Light source life | 30,000 h | 30,000 h |
| Design & noise | ||
| Fan noise | 30 dB | 29 dB |
| Fan noise (eco mode) | — | 27 dB |
| Weight | 4.5 kg | 4.8 kg |
| Width | 264 mm | 337 mm |
| Height | 221 mm | 120 mm |
| Depth | 165 mm | 265 mm |
| Colours | Grey | Black |
