- Attenborough.film
- Compare
- TH685i vs GT1080HDR
BenQ TH685i vs Optoma GT1080HDR
What TH685i does better (2) and where GT1080HDR wins (2) — every spec side by side.
Dimensions
Size comparison
TH685iGT1080HDR
| TH685i | GT1080HDR | Difference | |
|---|---|---|---|
| Height | 110 mm | 112 mm | −2 mm |
| Width | 312 mm | 316 mm | −4 mm |
| Depth | 225 mm | 257 mm | −32 mm |
| Weight | 2.8 kg | 3 kg | −0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is TH685i better than GT1080HDR?
- Automatic keystone correctionYes · GT1080HDR: No
- Weight2.8 kg vs 3 kg+7%
Why is GT1080HDR better than TH685i?
- Brightness (ANSI / ISO lumens)3,500 lm vs 3,800 lm+9%
- Fan noise35 dB vs 26 dB+35%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | — |
| Native panel resolution | 1920 × 1080 (Full HD) | — |
| Display technology | DLP | DLP |
| Light source | Lamp | Lamp |
| Brightness (ANSI / ISO lumens) | 3,500 lm | 3,800 lm |
| Native contrast ratio | 10,000:1 | — |
| HDR support | Yes | Yes |
| HDR formats | HLG | HDR10 |
| Colour gamut (Rec.709) | 95% | — |
| 3D playback | Yes | Yes |
| Gaming | ||
| Input lag | 8.3 ms | — |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 1.13:1 | 0.5:1 |
| Throw ratio (zoomed in) | 1.46:1 | — |
| Throw type | Standard throw (1.0:1 and longer) | Short throw (0.4–1.0:1) |
| Distance for a 100″ 16:9 image | 2.5 m | 1.11 m |
| Optical zoom | 1.3× | — |
| Lens shift | None | — |
| Autofocus | No | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 5 W | — |
| Smart & streaming | ||
| Smart platform | Android TV | — |
| Built-in smart platform | Yes | — |
| Chromecast built-in | Yes | — |
| Connectivity | ||
| HDMI inputs | 1 | 1 |
| HDMI version | 2 | — |
| USB port | Yes | — |
| Ethernet (LAN) | No | — |
| VGA input | Yes | Yes |
| Audio output | Yes | — |
| Battery, power & lifetime | ||
| Power consumption | 297 W | — |
| Light source life | 4,000 h | — |
| Light source life (eco mode) | 10,000 h | — |
| Design & noise | ||
| Fan noise | 35 dB | 26 dB |
| Weight | 2.8 kg | 3 kg |
| Width | 312 mm | 316 mm |
| Height | 110 mm | 112 mm |
| Depth | 225 mm | 257 mm |
| Colours | White | — |
