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- EF-100 vs 4K400x
Epson EF-100 vs Optoma 4K400x
What EF-100 does better (4) and where 4K400x wins (7) — every spec side by side.
Dimensions
Size comparison
EF-1004K400x
| EF-100 | 4K400x | Difference | |
|---|---|---|---|
| Height | 92 mm | 118 mm | −26 mm |
| Width | 210 mm | 315 mm | −105 mm |
| Depth | 230 mm | 270 mm | −40 mm |
| Weight | 2.7 kg | 3.5 kg | −0.8 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is EF-100 better than 4K400x?
- Automatic keystone correctionYes · 4K400x: No
- Contrast ratio (dynamic / claimed)2,500,000:1 vs 1,000,000:12.5×
- Power consumption172 W vs 305 W+77%
- Weight2.7 kg vs 3.5 kg+30%
Why is 4K400x better than EF-100?
- Brightness (ANSI / ISO lumens)2,000 lm vs 4,000 lm2×
- Resolution (on screen)1280 × 720 (HD) vs 3840 × 2160 (4K UHD)
- Built-in speakers (total output)5 W vs 10 W2×
- Native panel resolution1280 × 720 (HD) vs 1920 × 1080 (Full HD)
- Largest image size150″ vs 300″2×
- HDMI inputs1 vs 22×
- Fan noise29 dB vs 28 dB+4%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1280 × 720 (HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1280 × 720 (HD) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | 3LCD | DLP |
| Light source | Laser | — |
| Brightness (ANSI / ISO lumens) | 2,000 lm | 4,000 lm |
| Contrast ratio (dynamic / claimed) | 2,500,000:1 | 1,000,000:1 |
| HDR support | — | Yes |
| Motion interpolation (MEMC) | — | Yes |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 1.04:1 | 1.5:1 |
| Throw ratio (zoomed in) | 1.4:1 | 1.66:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.3 m | 3.32 m |
| Smallest image size | 30″ | 33″ |
| Largest image size | 150″ | 300″ |
| Optical zoom | 1.35× | — |
| Lens shift | — | None |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 5 W | 10 W |
| Smart & streaming | ||
| Bluetooth | Yes | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | — | No |
| VGA input | — | No |
| Audio output | — | Yes |
| Battery, power & lifetime | ||
| Power consumption | 172 W | 305 W |
| Light source life | — | 4,000 h |
| Light source life (eco mode) | — | 15,000 h |
| Design & noise | ||
| Fan noise | 29 dB | 28 dB |
| Fan noise (eco mode) | 26 dB | 26 dB |
| Weight | 2.7 kg | 3.5 kg |
| Width | 210 mm | 315 mm |
| Height | 92 mm | 118 mm |
| Depth | 230 mm | 270 mm |
| Colours | — | White |
