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- LK830ST vs X2-4K
BenQ LK830ST vs ViewSonic X2-4K
What LK830ST does better (6) and where X2-4K wins (4) — every spec side by side.
Why is LK830ST better than X2-4K?
- Brightness (ANSI / ISO lumens)4,000 lm vs 2,150 lm+86%
- Built-in speakers (total output)15 W vs 12 W+25%
- Largest image size300″ vs 150″2×
- Ethernet (LAN)Yes · X2-4K: No
- Fan noise30 dB vs 33 dB+10%
- Weight3.4 kg vs 3.6 kg+6%
Why is X2-4K better than LK830ST?
- Lens shiftNone vs Vertical
- Light source life20,000 h vs 30,000 h+50%
- Optical zoom1.25× vs 2×+60%
- Power consumption250 W vs 236 W+6%
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 |
| Brightness (ANSI / ISO lumens) | 4,000 lm | 2,150 lm |
| Contrast ratio (dynamic / claimed) | 3,000,000:1 | 3,000,000:1 |
| HDR support | — | Yes |
| Gaming | ||
| Maximum refresh rate | 240 Hz | 240 Hz |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 0.5:1 | 0.69:1 |
| Throw ratio (zoomed in) | — | 0.83:1 |
| Throw type | Short throw (0.4–1.0:1) | Short throw (0.4–1.0:1) |
| Distance for a 100″ 16:9 image | 1.11 m | 1.53 m |
| Smallest image size | 70″ | 60″ |
| Largest image size | 300″ | 150″ |
| Optical zoom | 1.25× | 2× |
| Lens shift | None | Vertical |
| Autofocus | Yes | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | No | No |
| Sound | ||
| Built-in speakers (total output) | 15 W | 12 W |
| Smart & streaming | ||
| Built-in smart platform | — | Yes |
| Wi-Fi | Yes | Yes |
| Bluetooth | — | Yes |
| Internal storage | — | 16 GB |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 250 W | 236 W |
| Light source life | 20,000 h | 30,000 h |
| Design & noise | ||
| Fan noise | 30 dB | 33 dB |
| Fan noise (eco mode) | 24 dB | 29 dB |
| Weight | 3.4 kg | 3.6 kg |
| Width | — | 355 mm |
| Height | — | 121 mm |
| Depth | — | 244 mm |
| Colours | Black | Black |
