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- EF-12 vs HZ40ST
Epson EF-12 vs Optoma HZ40ST
What EF-12 does better (3) and where HZ40ST wins (5) — every spec side by side.
Dimensions
Size comparison
EF-12HZ40ST
| EF-12 | HZ40ST | Difference | |
|---|---|---|---|
| Height | 135 mm | 122 mm | +13 mm |
| Width | 175 mm | 337 mm | −162 mm |
| Depth | 175 mm | 265 mm | −90 mm |
| Weight | 2.1 kg | 5.5 kg | −3.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is EF-12 better than HZ40ST?
- Automatic keystone correctionYes · HZ40ST: No
- Weight2.1 kg vs 5.5 kg2.6×
- Fan noise27 dB vs 32 dB+19%
Why is HZ40ST better than EF-12?
- Brightness (ANSI / ISO lumens)1,000 lm vs 4,200 lm4.2×
- Built-in speakers (total output)5 W vs 20 W4×
- Largest image size150″ vs 300″2×
- HDMI inputs1 vs 22×
- Ethernet (LAN)No · EF-12: Yes
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 | 3LCD | DLP |
| Light source | Laser | Laser |
| Brightness (ANSI / ISO lumens) | 1,000 lm | 4,200 lm |
| Contrast ratio (dynamic / claimed) | 2,500,000:1 | 2,500,000:1 |
| HDR support | Yes | Yes |
| HDR formats | HDR10, HLG | — |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | — | 85 Hz |
| Lens & placement | ||
| Throw ratio | 1:1 | 0.5:1 |
| Throw type | Standard throw (1.0:1 and longer) | Short throw (0.4–1.0:1) |
| Distance for a 100″ 16:9 image | 2.21 m | 1.11 m |
| Smallest image size | 30″ | 36″ |
| Largest image size | 150″ | 300″ |
| Lens shift | None | None |
| Autofocus | No | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 5 W | 20 W |
| Smart & streaming | ||
| Smart platform | Android (not TV-certified) | — |
| Built-in smart platform | Yes | — |
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | — |
| Chromecast built-in | Yes | — |
| Voice assistant | Google Assistant | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | Yes |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 102 W | — |
| Light source life | — | 30,000 h |
| Design & noise | ||
| Fan noise | 27 dB | 32 dB |
| Fan noise (eco mode) | 22 dB | 30 dB |
| Weight | 2.1 kg | 5.5 kg |
| Width | 175 mm | 337 mm |
| Height | 135 mm | 122 mm |
| Depth | 175 mm | 265 mm |
| Colours | Black | White |
