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- LK830ST vs IRIS Ultra
BenQ LK830ST vs JMGO IRIS Ultra
What LK830ST does better (3) and where IRIS Ultra wins (6) — every spec side by side.
vs
9.4Picture8.4
6.1Setup & placement9.5
6.4Noise, lifetime & portability7.6
Why is LK830ST better than IRIS Ultra?
- Contrast ratio (dynamic / claimed)3,000,000:1 vs 7,000:1428.6×
- Ethernet (LAN)Yes · IRIS Ultra: No
- Weight3.4 kg vs 6.7 kg+97%
Why is IRIS Ultra better than LK830ST?
- Lens shiftNone vs Vertical
- Automatic keystone correctionNo · LK830ST: Yes
- Brightness (ANSI / ISO lumens)4,000 lm vs 4,500 lm+12%
- Built-in speakers (total output)15 W vs 24 W+60%
- Fan noise30 dB vs 26 dB+15%
- Power consumption250 W vs 240 W+4%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | — |
| 4K method | 4K by pixel shifting | — |
| Display technology | DLP | — |
| Light source | Laser | Laser |
| Brightness (ANSI / ISO lumens) | 4,000 lm | 4,500 lm |
| Contrast ratio (dynamic / claimed) | 3,000,000:1 | 7,000:1 |
| HDR support | — | Yes |
| HDR formats | — | Dolby Vision |
| Dolby Vision | — | Yes |
| Colour gamut (BT.2020) | — | 110% |
| Motion interpolation (MEMC) | — | Yes |
| Gaming | ||
| Maximum refresh rate | 240 Hz | — |
| VRR / ALLM | — | Yes |
| Lens & placement | ||
| Throw ratio | 0.5:1 | — |
| Throw type | Short throw (0.4–1.0:1) | — |
| Distance for a 100″ 16:9 image | 1.11 m | — |
| Smallest image size | 70″ | 40″ |
| Largest image size | 300″ | 300″ |
| Optical zoom | 1.25× | — |
| Lens shift | None | Vertical |
| Autofocus | Yes | Yes |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | No | Yes |
| Automatic screen fit | — | Yes |
| Sound | ||
| Built-in speakers (total output) | 15 W | 24 W |
| Dolby Audio / Dolby Digital Plus | — | Yes |
| Smart & streaming | ||
| Smart platform | — | Google TV |
| Built-in smart platform | — | Yes |
| Netflix (officially licensed) | — | Yes |
| Wi-Fi | Yes | Yes |
| Bluetooth | — | Yes |
| Chromecast built-in | — | Yes |
| Internal storage | — | 64 GB |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| HDMI version | — | 1.4 |
| HDMI eARC | — | Yes |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 250 W | 240 W |
| Light source life | 20,000 h | 20,000 h |
| Design & noise | ||
| Fan noise | 30 dB | 26 dB |
| Fan noise (eco mode) | 24 dB | — |
| Weight | 3.4 kg | 6.7 kg |
| Width | — | 308 mm |
| Height | — | 230 mm |
| Depth | — | 274 mm |
| Colours | Black | Black |
