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- QH31s vs PR-4700
AOpen QH31s vs Denver PR-4700
What QH31s does better (2) and where PR-4700 wins (2) — every spec side by side.
Why is QH31s better than PR-4700?
- Wi-FiYes · PR-4700: No
- Audio outputYes · PR-4700: No
Why is PR-4700 better than QH31s?
- Contrast ratio (dynamic / claimed)1,000:1 vs 2,000:12×
- Largest image size100″ vs 180″+80%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1280 × 720 (HD) | — |
| Native panel resolution | 1280 × 720 (HD) | — |
| 4K method | — | 4K input only (downscaled) |
| Light source | LED | LED |
| Brightness (ANSI / ISO lumens) | 150 lm | 150 lm |
| Contrast ratio (dynamic / claimed) | 1,000:1 | 2,000:1 |
| Lens & placement | ||
| Smallest image size | — | 40″ |
| Largest image size | 100″ | 180″ |
| Lens shift | None | None |
| Autofocus | No | — |
| Keystone correction | Yes | — |
| Automatic keystone correction | No | — |
| Sound | ||
| Built-in speakers (total output) | 10 W | — |
| Smart & streaming | ||
| Wi-Fi | Yes | No |
| Bluetooth | Yes | Yes |
| Connectivity | ||
| HDMI inputs | 1 | 1 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | No | No |
| Audio output | Yes | No |
| Battery, power & lifetime | ||
| Built-in battery | — | Yes |
| Light source life | 30,000 h | — |
| Design & noise | ||
| Colours | — | White |
