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- HZ45UST vs Mi
Optoma HZ45UST vs Xiaomi Mi
What HZ45UST does better (4) and where Mi wins (6) — every spec side by side.
Dimensions
Size comparison
HZ45USTMi
| HZ45UST | Mi | Difference | |
|---|---|---|---|
| Height | 124 mm | 90 mm | +34 mm |
| Width | 382 mm | 410 mm | −28 mm |
| Depth | 310 mm | 290 mm | +20 mm |
| Weight | 5.6 kg | 7 kg | −1.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is HZ45UST better than Mi?
- Brightness (ANSI / ISO lumens)4,200 lm vs 1,600 lm2.6×
- Contrast ratio (dynamic / claimed)3,000,000:1 vs 3,000:11,000×
- Fan noise30 dB vs 32 dB+7%
- Weight5.6 kg vs 7 kg+25%
Why is Mi better than HZ45UST?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Built-in speakers (total output)10 W vs 30 W3×
- Light source life20,000 h vs 25,000 h+25%
- HDMI inputs2 vs 3+50%
- Largest image size102″ vs 150″+47%
- Power consumption330 W vs 250 W+32%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | — |
| Display technology | DLP | — |
| Light source | Laser | Laser |
| Brightness (ANSI / ISO lumens) | 4,200 lm | 1,600 lm |
| Contrast ratio (dynamic / claimed) | 3,000,000:1 | 3,000:1 |
| HDR support | No | — |
| 3D playback | Yes | — |
| Gaming | ||
| Maximum refresh rate | 120 Hz | — |
| Lens & placement | ||
| Throw ratio | 0.25:1 | 0.23:1 |
| Throw type | Ultra short throw (under 0.4:1) | Ultra short throw (under 0.4:1) |
| Distance for a 100″ 16:9 image | 0.55 m | 0.51 m |
| Smallest image size | 87″ | — |
| Largest image size | 102″ | 150″ |
| Lens shift | None | None |
| Keystone correction | Yes | — |
| Automatic keystone correction | No | — |
| Sound | ||
| Built-in speakers (total output) | 10 W | 30 W |
| Smart & streaming | ||
| Smart platform | — | Android (not TV-certified) |
| Built-in smart platform | — | Yes |
| Wi-Fi | Yes | Yes |
| Bluetooth | — | Yes |
| Internal storage | — | 16 GB |
| Connectivity | ||
| HDMI inputs | 2 | 3 |
| HDMI version | 1.4 | — |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | Yes |
| VGA input | Yes | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 330 W | 250 W |
| Light source life | 20,000 h | 25,000 h |
| Design & noise | ||
| Fan noise | 30 dB | 32 dB |
| Weight | 5.6 kg | 7 kg |
| Width | 382 mm | 410 mm |
| Height | 124 mm | 90 mm |
| Depth | 310 mm | 290 mm |
| Colours | White | Black |
