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- TK700STi vs HD28e
BenQ TK700STi vs Optoma HD28e
What TK700STi does better (6) and where HD28e wins (5) — every spec side by side.
Dimensions
Size comparison
TK700STiHD28e
| TK700STi | HD28e | Difference | |
|---|---|---|---|
| Height | 110 mm | 108 mm | +2 mm |
| Width | 312 mm | 316 mm | −4 mm |
| Depth | 246 mm | 244 mm | +2 mm |
| Weight | 3.1 kg | 2.5 kg | +0.6 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is TK700STi better than HD28e?
- Resolution (on screen)3840 × 2160 (4K UHD) vs 1920 × 1080 (Full HD)
- Automatic keystone correctionYes · HD28e: No
- HDR supportYes · HD28e: No
- HDMI inputs2 vs 12×
- HDMI version2 vs 1.4+43%
- Optical zoom1.2× vs 1.1×+9%
Why is HD28e better than TK700STi?
- Brightness (ANSI / ISO lumens)3,000 lm vs 3,800 lm+27%
- Contrast ratio (dynamic / claimed)10,000:1 vs 30,000:13×
- Fan noise35 dB vs 25 dB+40%
- Weight3.1 kg vs 2.5 kg+24%
- Power consumption310 W vs 295 W+5%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | 4K by pixel shifting | — |
| Display technology | DLP | DLP |
| Light source | Lamp | — |
| Brightness (ANSI / ISO lumens) | 3,000 lm | 3,800 lm |
| Native contrast ratio | 10,000:1 | — |
| Contrast ratio (dynamic / claimed) | 10,000:1 | 30,000:1 |
| HDR support | Yes | No |
| HDR formats | HLG | — |
| Colour gamut (Rec.709) | 96% | — |
| 3D playback | Yes | Yes |
| Gaming | ||
| Input lag | 4.2 ms | — |
| Maximum refresh rate | 120 Hz | 120 Hz |
| Game / low-latency mode | — | Yes |
| Lens & placement | ||
| Throw ratio | 0.9:1 | 1.47:1 |
| Throw ratio (zoomed in) | 1.08:1 | 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 | 1.99 m | 3.25 m |
| Smallest image size | 30″ | 28″ |
| Largest image size | 300″ | 300″ |
| Optical zoom | 1.2× | 1.1× |
| Lens shift | None | None |
| Autofocus | No | No |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 5 W | 5 W |
| Dolby Atmos | Yes | — |
| Smart & streaming | ||
| Smart platform | Android TV | — |
| Built-in smart platform | Yes | — |
| Netflix (officially licensed) | Yes | — |
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | — |
| Chromecast built-in | Yes | — |
| Connectivity | ||
| HDMI inputs | 2 | 1 |
| HDMI version | 2 | 1.4 |
| HDMI eARC | Yes | — |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 310 W | 295 W |
| Light source life | 4,000 h | 4,000 h |
| Light source life (eco mode) | 15,000 h | 10,000 h |
| Design & noise | ||
| Fan noise | 35 dB | 25 dB |
| Fan noise (eco mode) | 29 dB | — |
| Weight | 3.1 kg | 2.5 kg |
| Width | 312 mm | 316 mm |
| Height | 110 mm | 108 mm |
| Depth | 246 mm | 244 mm |
| Colours | White, Black | White |
