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- UHD55 vs X1
Optoma UHD55 vs ViewSonic X1
What UHD55 does better (6) and where X1 wins (3) — every spec side by side.
Why is UHD55 better than X1?
- Resolution (on screen)3840 × 2160 (4K UHD) vs 1920 × 1080 (Full HD)
- Brightness (ANSI / ISO lumens)3,600 lm vs 2,300 lm+57%
- 4K method4K by pixel shifting vs 4K input only (downscaled)
- Largest image size300″ vs 150″2×
- Ethernet (LAN)Yes · X1: No
- Fan noise28 dB vs 31 dB+11%
Why is X1 better than UHD55?
- Light source life4,000 h vs 30,000 h7.5×
- Contrast ratio (dynamic / claimed)1,200,000:1 vs 3,000,000:12.5×
- Built-in speakers (total output)10 W vs 12 W+20%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | 4K by pixel shifting | 4K input only (downscaled) |
| Display technology | DLP | DLP |
| Light source | — | LED |
| Brightness (ANSI / ISO lumens) | 3,600 lm | 2,300 lm |
| Contrast ratio (dynamic / claimed) | 1,200,000:1 | 3,000,000:1 |
| HDR support | Yes | Yes |
| HDR formats | HLG | — |
| 3D playback | Yes | — |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 1.21:1 | 1.15:1 |
| Throw ratio (zoomed in) | 1.59:1 | 1.5:1 |
| 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 | 2.55 m |
| Smallest image size | — | 60″ |
| Largest image size | 300″ | 150″ |
| Optical zoom | — | 2× |
| Lens shift | Vertical | Vertical |
| Keystone correction | — | Yes |
| Automatic keystone correction | — | No |
| Sound | ||
| Built-in speakers (total output) | 10 W | 12 W |
| Smart & streaming | ||
| Wi-Fi | — | Yes |
| Bluetooth | — | Yes |
| Internal storage | — | 16 GB |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| 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 | — |
| Light source life | 4,000 h | 30,000 h |
| Light source life (eco mode) | 10,000 h | — |
| Design & noise | ||
| Fan noise | 28 dB | 31 dB |
| Fan noise (eco mode) | 25 dB | 27 dB |
| Weight | — | 3.6 kg |
| Width | — | 355 mm |
| Height | — | 121 mm |
| Depth | — | 244 mm |
| Colours | White | White |
