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- X139Wi vs LSD400W
Acer X139Wi vs ViewSonic LSD400W
What X139Wi does better (4) and where LSD400W wins (2) — every spec side by side.
Dimensions
Size comparison
X139WiLSD400W
| X139Wi | LSD400W | Difference | |
|---|---|---|---|
| Height | 114 mm | 129 mm | −15 mm |
| Width | 313 mm | 286 mm | +27 mm |
| Depth | 240 mm | 216 mm | +24 mm |
| Weight | 2.8 kg | 3.1 kg | −0.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is X139Wi better than LSD400W?
- Brightness (ANSI / ISO lumens)5,000 lm vs 4,000 lm+25%
- Automatic keystone correctionYes · LSD400W: No
- Fan noise27 dB vs 30 dB+11%
- Weight2.8 kg vs 3.1 kg+11%
Why is LSD400W better than X139Wi?
- HDMI inputs1 vs 22×
- Optical zoom1.12× vs 2×+79%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | — | 1920 × 1080 (Full HD) |
| Native panel resolution | — | 1920 × 1080 (Full HD) |
| Display technology | DLP | DLP |
| Light source | Lamp | Laser |
| Brightness (ANSI / ISO lumens) | 5,000 lm | 4,000 lm |
| Contrast ratio (dynamic / claimed) | — | 3,000,000:1 |
| 3D playback | Yes | — |
| Lens & placement | ||
| Throw ratio | 1.49:1 | — |
| Throw ratio (zoomed in) | 1.67:1 | — |
| Throw type | Standard throw (1.0:1 and longer) | — |
| Distance for a 100″ 16:9 image | 3.3 m | — |
| Largest image size | — | 300″ |
| Optical zoom | 1.12× | 2× |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 1.4 |
| USB port | — | Yes |
| Ethernet (LAN) | — | No |
| VGA input | Yes | No |
| Audio output | — | Yes |
| Battery, power & lifetime | ||
| Light source life | — | 20,000 h |
| Light source life (eco mode) | — | 30,000 h |
| Design & noise | ||
| Fan noise | 27 dB | 30 dB |
| Fan noise (eco mode) | — | 25 dB |
| Weight | 2.8 kg | 3.1 kg |
| Width | 313 mm | 286 mm |
| Height | 114 mm | 129 mm |
| Depth | 240 mm | 216 mm |
| Colours | — | White |
