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- DBX3 Pro vs PX749-4K
Dangbei DBX3 Pro vs ViewSonic PX749-4K
What DBX3 Pro does better (0) and where PX749-4K wins (1) — every spec side by side.
Why is DBX3 Pro better than PX749-4K?
DBX3 Pro has no measurable advantages in this pair.
Why is PX749-4K better than DBX3 Pro?
- Brightness (ANSI / ISO lumens)3,200 lm vs 4,000 lm+25%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | 4K by pixel shifting | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | — | Lamp |
| Brightness (ANSI / ISO lumens) | 3,200 lm | 4,000 lm |
| Contrast ratio (dynamic / claimed) | — | 12,000:1 |
| HDR support | Yes | — |
| HDR formats | HDR10+, HLG | — |
| Gaming | ||
| Maximum refresh rate | 60 Hz | — |
| Game / low-latency mode | Yes | — |
| Lens & placement | ||
| Keystone correction | Yes | — |
| Automatic keystone correction | Yes | — |
| Obstacle avoidance | Yes | — |
| Automatic screen fit | Yes | — |
| Sound | ||
| Dolby Audio / Dolby Digital Plus | Yes | — |
| DTS | Yes | — |
| Connectivity | ||
| HDMI inputs | — | 2 |
| HDMI version | — | 2 |
| USB port | — | Yes |
| Ethernet (LAN) | — | Yes |
| VGA input | — | No |
| Audio output | — | Yes |
| Battery, power & lifetime | ||
| Light source life | — | 40,000 h |
| Light source life (eco mode) | — | 20,000 h |
| Design & noise | ||
| Weight | — | 3 kg |
| Width | — | 312 mm |
| Height | — | 222 mm |
| Depth | — | 108 mm |
| Colours | — | White |
