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- H6518STi vs HD28e
Acer H6518STi vs Optoma HD28e
What H6518STi does better (3) and where HD28e wins (5) — every spec side by side.
Dimensions
Size comparison
H6518STiHD28e
| H6518STi | HD28e | Difference | |
|---|---|---|---|
| Height | 100 mm | 108 mm | −8 mm |
| Width | 313 mm | 316 mm | −3 mm |
| Depth | 255 mm | 244 mm | +11 mm |
| Weight | 3 kg | 2.5 kg | +0.5 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is H6518STi better than HD28e?
- Automatic keystone correctionYes · HD28e: No
- HDMI inputs2 vs 12×
- Optical zoom2× vs 1.1×+82%
Why is HD28e better than H6518STi?
- Brightness (ANSI / ISO lumens)3,500 lm vs 3,800 lm+9%
- Built-in speakers (total output)3 W vs 5 W+67%
- Contrast ratio (dynamic / claimed)10,000:1 vs 30,000:13×
- Fan noise36 dB vs 25 dB+44%
- Weight2.95 kg vs 2.5 kg+18%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Display technology | DLP | DLP |
| Light source | Lamp | — |
| Brightness (ANSI / ISO lumens) | 3,500 lm | 3,800 lm |
| Contrast ratio (dynamic / claimed) | 10,000:1 | 30,000:1 |
| HDR support | No | No |
| 3D playback | Yes | Yes |
| Gaming | ||
| Maximum refresh rate | 120 Hz | 120 Hz |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 0.5:1 | 1.47:1 |
| Throw ratio (zoomed in) | — | 1.62:1 |
| Throw type | Short throw (0.4–1.0:1) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 1.11 m | 3.25 m |
| Smallest image size | 45″ | 28″ |
| Largest image size | 303″ | 300″ |
| Optical zoom | 2× | 1.1× |
| Lens shift | None | None |
| Autofocus | No | No |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 3 W | 5 W |
| Smart & streaming | ||
| Wi-Fi | Yes | Yes |
| Connectivity | ||
| HDMI inputs | 2 | 1 |
| HDMI version | — | 1.4 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | Yes | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 290 W | 295 W |
| Light source life | 4,000 h | 4,000 h |
| Light source life (eco mode) | 10,000 h | 10,000 h |
| Design & noise | ||
| Fan noise | 36 dB | 25 dB |
| Fan noise (eco mode) | 27 dB | — |
| Weight | 2.95 kg | 2.5 kg |
| Width | 313 mm | 316 mm |
| Height | 100 mm | 108 mm |
| Depth | 255 mm | 244 mm |
| Colours | White | White |
