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- EF-12 vs X1-4KE Pro
Epson EF-12 vs ViewSonic X1-4KE Pro
What EF-12 does better (4) and where X1-4KE Pro wins (5) — every spec side by side.
vs
3.6Picture9.2
5.4Setup & placement6.8
2.5Smart features & sound6.1
9.5Noise, lifetime & portability6.7
Dimensions
Size comparison
EF-12X1-4KE Pro
| EF-12 | X1-4KE Pro | Difference | |
|---|---|---|---|
| Height | 135 mm | 121 mm | +14 mm |
| Width | 175 mm | 355 mm | −180 mm |
| Depth | 175 mm | 244 mm | −69 mm |
| Weight | 2.1 kg | 3.6 kg | −1.5 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is EF-12 better than X1-4KE Pro?
- Automatic keystone correctionYes · X1-4KE Pro: No
- Power consumption102 W vs 236 W2.3×
- Fan noise27 dB vs 33 dB+22%
- Weight2.1 kg vs 3.6 kg+71%
Why is X1-4KE Pro better than EF-12?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Built-in speakers (total output)5 W vs 12 W2.4×
- Lens shiftNone vs Vertical
- HDMI inputs1 vs 22×
- Contrast ratio (dynamic / claimed)2,500,000:1 vs 3,000,000:1+20%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | 3LCD | DLP |
| Light source | Laser | LED |
| Brightness (ANSI / ISO lumens) | 1,000 lm | — |
| Contrast ratio (dynamic / claimed) | 2,500,000:1 | 3,000,000:1 |
| HDR support | Yes | Yes |
| HDR formats | HDR10, HLG | — |
| 3D playback | Yes | — |
| Gaming | ||
| Maximum refresh rate | — | 240 Hz |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 1:1 | 1.15:1 |
| Throw ratio (zoomed in) | — | 1.5:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.21 m | 2.55 m |
| Smallest image size | 30″ | 60″ |
| Largest image size | 150″ | 150″ |
| Optical zoom | — | 2× |
| Lens shift | None | Vertical |
| Autofocus | No | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 5 W | 12 W |
| Smart & streaming | ||
| Smart platform | Android (not TV-certified) | Google TV |
| Built-in smart platform | Yes | Yes |
| Netflix (officially licensed) | — | Yes |
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | Yes |
| Chromecast built-in | Yes | Yes |
| Voice assistant | Google Assistant | — |
| Internal storage | — | 16 GB |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 102 W | 236 W |
| Light source life | — | 30,000 h |
| Design & noise | ||
| Fan noise | 27 dB | 33 dB |
| Fan noise (eco mode) | 22 dB | 29 dB |
| Weight | 2.1 kg | 3.6 kg |
| Width | 175 mm | 355 mm |
| Height | 135 mm | 121 mm |
| Depth | 175 mm | 244 mm |
| Colours | Black | Black |
