- Attenborough.film
- Compare
- HD146X vs HZ40ST
Optoma HD146X vs Optoma HZ40ST
What HD146X does better (1) and where HZ40ST wins (8) — every spec side by side.
Why is HD146X better than HZ40ST?
- Fan noise26 dB vs 32 dB+23%
Why is HZ40ST better than HD146X?
- Built-in speakers (total output)3 W vs 20 W6.7×
- Light source life4,000 h vs 30,000 h7.5×
- Brightness (ANSI / ISO lumens)3,600 lm vs 4,200 lm+17%
- Contrast ratio (dynamic / claimed)25,000:1 vs 2,500,000:1100×
- HDR supportNo · HD146X: Yes
- HDMI inputs1 vs 22×
- Ethernet (LAN)No · HD146X: Yes
- HDMI version1.4 vs 2+43%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Display technology | DLP | DLP |
| Light source | — | Laser |
| Brightness (ANSI / ISO lumens) | 3,600 lm | 4,200 lm |
| Contrast ratio (dynamic / claimed) | 25,000:1 | 2,500,000:1 |
| HDR support | No | Yes |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | — | 85 Hz |
| Game / low-latency mode | Yes | — |
| Lens & placement | ||
| Throw ratio | 1.47:1 | 0.5:1 |
| Throw ratio (zoomed in) | 1.62:1 | — |
| Throw type | Standard throw (1.0:1 and longer) | Short throw (0.4–1.0:1) |
| Distance for a 100″ 16:9 image | 3.25 m | 1.11 m |
| Smallest image size | 28″ | 36″ |
| Largest image size | 300″ | 300″ |
| Optical zoom | 2× | — |
| Lens shift | None | None |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | No | No |
| Sound | ||
| Built-in speakers (total output) | 3 W | 20 W |
| Smart & streaming | ||
| Wi-Fi | Yes | Yes |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | 1.4 | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | Yes |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 295 W | — |
| Light source life | 4,000 h | 30,000 h |
| Light source life (eco mode) | 10,000 h | — |
| Design & noise | ||
| Fan noise | 26 dB | 32 dB |
| Fan noise (eco mode) | — | 30 dB |
| Weight | — | 5.5 kg |
| Width | — | 337 mm |
| Height | — | 122 mm |
| Depth | — | 265 mm |
| Colours | Black | White |








