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- X139Wi vs Photon Life PK31
Acer X139Wi vs Optoma Photon Life PK31
What X139Wi does better (3) and where Photon Life PK31 wins (1) — every spec side by side.
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Why is X139Wi better than Photon Life PK31?
- Brightness (ANSI / ISO lumens)5,000 lm vs 900 lm5.6×
- Automatic keystone correctionYes · Photon Life PK31: No
- Fan noise27 dB vs 32 dB+19%
Why is Photon Life PK31 better than X139Wi?
- Weight2.8 kg vs 2.2 kg+27%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | — | 3840 × 2160 (4K UHD) |
| Native panel resolution | — | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | Lamp | LED |
| Brightness (ANSI / ISO lumens) | 5,000 lm | 900 lm |
| Contrast ratio (dynamic / claimed) | — | 400:1 |
| 3D playback | Yes | — |
| Lens & placement | ||
| Throw ratio | 1.49:1 | 1.5:1 |
| Throw ratio (zoomed in) | 1.67:1 | 1.65:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 3.3 m | 3.32 m |
| Smallest image size | — | 60″ |
| Largest image size | — | 150″ |
| Optical zoom | 1.12× | 1.1× |
| Lens shift | — | None |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | — | 5 W |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| Connectivity | ||
| HDMI inputs | 1 | 1 |
| USB port | — | Yes |
| Ethernet (LAN) | — | No |
| VGA input | Yes | No |
| Audio output | — | Yes |
| Battery, power & lifetime | ||
| Light source life | — | 30,000 h |
| Design & noise | ||
| Fan noise | 27 dB | 32 dB |
| Fan noise (eco mode) | — | 30 dB |
| Weight | 2.8 kg | 2.2 kg |
| Width | 313 mm | — |
| Height | 114 mm | — |
| Depth | 240 mm | — |
| Colours | — | Black |
