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- HL6521G vs UZ38X
Acer HL6521G vs Optoma UZ38X
What HL6521G does better (1) and where UZ38X wins (4) — every spec side by side.
Why is HL6521G better than UZ38X?
- Brightness (ANSI / ISO lumens)4,000 lm vs 3,800 lm+5%
Why is UZ38X better than HL6521G?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Light source life4,000 h vs 30,000 h7.5×
- HDMI inputs1 vs 22×
- Audio outputNo · HL6521G: Yes
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | — | Laser |
| Brightness (ANSI / ISO lumens) | 4,000 lm | 3,800 lm |
| Contrast ratio (dynamic / claimed) | — | 1,500,000:1 |
| Lens & placement | ||
| Throw ratio | — | 1.21:1 |
| Throw ratio (zoomed in) | — | 1.59:1 |
| Throw type | — | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | — | 2.68 m |
| Smallest image size | — | 28″ |
| Largest image size | — | 300″ |
| Optical zoom | — | 1.3× |
| Keystone correction | — | Yes |
| Automatic keystone correction | — | No |
| Sound | ||
| Built-in speakers (total output) | — | 15 W |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| USB port | No | Yes |
| Ethernet (LAN) | No | No |
| VGA input | No | No |
| Audio output | No | Yes |
| Battery, power & lifetime | ||
| Light source life | 4,000 h | 30,000 h |
| Design & noise | ||
| Fan noise | — | 33 dB |
| Fan noise (eco mode) | — | 28 dB |
| Weight | — | 3.4 kg |
| Width | — | 238 mm |
| Height | — | 130 mm |
| Depth | — | 215 mm |
| Colours | White | Black |









