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- UHD42 vs X100-4K
Optoma UHD42 vs ViewSonic X100-4K
What UHD42 does better (5) and where X100-4K wins (7) — every spec side by side.
Dimensions
Size comparison
UHD42X100-4K
| UHD42 | X100-4K | Difference | |
|---|---|---|---|
| Height | 118 mm | 183 mm | −65 mm |
| Width | 315 mm | 416 mm | −101 mm |
| Depth | 270 mm | 463 mm | −193 mm |
| Weight | 3.9 kg | 7.6 kg | −3.7 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is UHD42 better than X100-4K?
- Brightness (ANSI / ISO lumens)3,400 lm vs 2,900 lm+17%
- Maximum refresh rate120 Hz vs 85 Hz+41%
- Weight3.9 kg vs 7.6 kg+95%
- Largest image size302″ vs 200″+51%
- Optical zoom1.3× vs 1.2×+8%
Why is X100-4K better than UHD42?
- Built-in speakers (total output)10 W vs 40 W4×
- Light source life4,000 h vs 30,000 h7.5×
- Contrast ratio (dynamic / claimed)500,000:1 vs 3,000,000:16×
- HDMI inputs2 vs 42×
- Ethernet (LAN)No · UHD42: Yes
- Power consumption305 W vs 159 W+92%
- Fan noise26 dB vs 23 dB+13%
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 | — | LED |
| Brightness (ANSI / ISO lumens) | 3,400 lm | 2,900 lm |
| Contrast ratio (dynamic / claimed) | 500,000:1 | 3,000,000:1 |
| HDR support | Yes | Yes |
| HDR formats | — | HDR10 |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | 120 Hz | 85 Hz |
| Lens & placement | ||
| Throw ratio | 1.21:1 | 1.2:1 |
| Throw ratio (zoomed in) | 1.59:1 | 1.44:1 |
| 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 | 2.66 m |
| Smallest image size | 34″ | 40″ |
| Largest image size | 302″ | 200″ |
| Optical zoom | 1.3× | 1.2× |
| Lens shift | Vertical | Vertical |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | No | No |
| Sound | ||
| Built-in speakers (total output) | 10 W | 40 W |
| Smart & streaming | ||
| Wi-Fi | — | Yes |
| Bluetooth | — | Yes |
| Internal storage | — | 16 GB |
| Connectivity | ||
| HDMI inputs | 2 | 4 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | Yes | Yes |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 305 W | 159 W |
| Light source life | 4,000 h | 30,000 h |
| Light source life (eco mode) | 15,000 h | — |
| Design & noise | ||
| Fan noise | 26 dB | 23 dB |
| Fan noise (eco mode) | — | 20 dB |
| Weight | 3.9 kg | 7.6 kg |
| Width | 315 mm | 416 mm |
| Height | 118 mm | 183 mm |
| Depth | 270 mm | 463 mm |
| Colours | White | Black |
