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- TH685P vs Poseidon E40
BenQ TH685P vs ULTIMEA Poseidon E40
What TH685P does better (2) and where Poseidon E40 wins (3) — every spec side by side.
vs
2.8Noise, lifetime & portability9.1
Dimensions
Size comparison
TH685PPoseidon E40
| TH685P | Poseidon E40 | Difference | |
|---|---|---|---|
| Height | 110 mm | 174 mm | −64 mm |
| Width | 312 mm | 211 mm | +101 mm |
| Depth | 225 mm | 281 mm | −56 mm |
| Weight | 2.8 kg | 3.2 kg | −0.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is TH685P better than Poseidon E40?
- Largest image size300″ vs 120″2.5×
- Weight2.8 kg vs 3.15 kg+12%
Why is Poseidon E40 better than TH685P?
- Built-in speakers (total output)5 W vs 20 W4×
- Light source life4,000 h vs 100,000 h25×
- Fan noise35 dB vs 30 dB+17%
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) |
| 4K method | — | 4K input only (downscaled) |
| Display technology | DLP | LCD (single panel) |
| Light source | Lamp | LED |
| Brightness (ANSI / ISO lumens) | — | 1,000 lm |
| Contrast ratio (dynamic / claimed) | — | 2,000:1 |
| HDR support | — | Yes |
| HDR formats | — | HDR10 |
| Gaming | ||
| Maximum refresh rate | 120 Hz | — |
| Lens & placement | ||
| Throw ratio | 1.13:1 | 1.23:1 |
| Throw ratio (zoomed in) | 1.46:1 | — |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.5 m | 2.72 m |
| Smallest image size | 30″ | 120″ |
| Largest image size | 300″ | 120″ |
| Lens shift | — | None |
| Autofocus | — | Yes |
| Keystone correction | — | Yes |
| Automatic keystone correction | — | Yes |
| Obstacle avoidance | — | Yes |
| Automatic screen fit | — | Yes |
| Sound | ||
| Built-in speakers (total output) | 5 W | 20 W |
| Smart & streaming | ||
| Smart platform | — | Android TV |
| Built-in smart platform | — | Yes |
| Wi-Fi | — | Yes |
| Bluetooth | — | Yes |
| AirPlay | — | Yes |
| Chromecast built-in | — | Yes |
| Connectivity | ||
| HDMI inputs | 1 | 1 |
| USB-C video input | Yes | — |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | Yes | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | — | 200 W |
| Light source life | 4,000 h | 100,000 h |
| Light source life (eco mode) | 10,000 h | — |
| Design & noise | ||
| Fan noise | 35 dB | 30 dB |
| Fan noise (eco mode) | 29 dB | — |
| Weight | 2.8 kg | 3.15 kg |
| Width | 312 mm | 211 mm |
| Height | 110 mm | 174 mm |
| Depth | 225 mm | 281 mm |
| Colours | White | Grey, Black |
