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- M511 vs UHD42
Acer M511 vs Optoma UHD42
What M511 does better (6) and where UHD42 wins (5) — every spec side by side.
Dimensions
Size comparison
M511UHD42
| M511 | UHD42 | Difference | |
|---|---|---|---|
| Height | 114 mm | 118 mm | −4 mm |
| Width | 313 mm | 315 mm | −2 mm |
| Depth | 240 mm | 270 mm | −30 mm |
| Weight | 3 kg | 3.9 kg | −0.9 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is M511 better than UHD42?
- Brightness (ANSI / ISO lumens)4,300 lm vs 3,400 lm+26%
- Automatic keystone correctionYes · UHD42: No
- Native panel resolution1920 × 1200 (WUXGA) vs 1920 × 1080 (Full HD)
- Ethernet (LAN)Yes · UHD42: No
- Weight3 kg vs 3.9 kg+30%
- Power consumption295 W vs 305 W+3%
Why is UHD42 better than M511?
- Resolution (on screen)1920 × 1200 (WUXGA) vs 3840 × 2160 (4K UHD)
- Contrast ratio (dynamic / claimed)10,000:1 vs 500,000:150×
- HDMI inputs1 vs 22×
- Fan noise27 dB vs 26 dB+4%
- Optical zoom1.12× vs 1.3×+16%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1200 (WUXGA) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1200 (WUXGA) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | Lamp | — |
| Brightness (ANSI / ISO lumens) | 4,300 lm | 3,400 lm |
| Contrast ratio (dynamic / claimed) | 10,000:1 | 500,000:1 |
| HDR support | — | Yes |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | 120 Hz | 120 Hz |
| Lens & placement | ||
| Throw ratio | 1.49:1 | 1.21:1 |
| Throw ratio (zoomed in) | 1.67:1 | 1.59:1 |
| 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 | 2.68 m |
| Smallest image size | — | 34″ |
| Largest image size | 301″ | 302″ |
| Optical zoom | 1.12× | 1.3× |
| Lens shift | — | Vertical |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 10 W | 10 W |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| Bluetooth | Yes | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | No |
| VGA input | Yes | Yes |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 295 W | 305 W |
| Light source life | — | 4,000 h |
| Light source life (eco mode) | — | 15,000 h |
| Design & noise | ||
| Fan noise | 27 dB | 26 dB |
| Fan noise (eco mode) | 24 dB | — |
| Weight | 3 kg | 3.9 kg |
| Width | 313 mm | 315 mm |
| Height | 114 mm | 118 mm |
| Depth | 240 mm | 270 mm |
| Colours | White | White |
