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- W2720i vs LS751HD
BenQ W2720i vs ViewSonic LS751HD
What W2720i does better (6) and where LS751HD wins (4) — every spec side by side.
Dimensions
Size comparison
W2720iLS751HD
| W2720i | LS751HD | Difference | |
|---|---|---|---|
| Height | 143 mm | 132 mm | +11 mm |
| Width | 420 mm | 337 mm | +83 mm |
| Depth | 305 mm | 265 mm | +40 mm |
| Weight | 6.4 kg | 4.5 kg | +1.9 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is W2720i better than LS751HD?
- Resolution (on screen)3840 × 2160 (4K UHD) vs 1920 × 1080 (Full HD)
- Maximum refresh rate240 Hz vs 120 Hz2×
- Automatic keystone correctionYes · LS751HD: No
- Contrast ratio (dynamic / claimed)2,000,000:1 vs 300,000:16.7×
- Fan noise28 dB vs 32 dB+14%
- HDMI inputs3 vs 2+50%
Why is LS751HD better than W2720i?
- Brightness (ANSI / ISO lumens)2,500 lm vs 5,000 lm2×
- Ethernet (LAN)No · W2720i: Yes
- Optical zoom1.3× vs 2×+54%
- Weight6.4 kg vs 4.5 kg+42%
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 | LED | Laser |
| Brightness (ANSI / ISO lumens) | 2,500 lm | 5,000 lm |
| Contrast ratio (dynamic / claimed) | 2,000,000:1 | 300,000:1 |
| HDR support | Yes | Yes |
| HDR formats | HDR10+, HDR10, HLG | — |
| Colour gamut (Rec.709) | 98% | — |
| Colour gamut (DCI-P3) | 90% | — |
| Motion interpolation (MEMC) | Yes | — |
| 3D playback | Yes | Yes |
| Gaming | ||
| Input lag | 6.5 ms | — |
| Maximum refresh rate | 240 Hz | 120 Hz |
| Game / low-latency mode | Yes | — |
| VRR / ALLM | Yes | — |
| Lens & placement | ||
| Throw ratio | 1:1 | 1.4:1 |
| Throw ratio (zoomed in) | 1.3:1 | 2.24:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.21 m | 3.1 m |
| Smallest image size | — | 30″ |
| Largest image size | — | 300″ |
| Optical zoom | 1.3× | 2× |
| Lens shift | Vertical | Vertical |
| Autofocus | Yes | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 10 W | 10 W |
| Dolby Atmos | Yes | — |
| Smart & streaming | ||
| Smart platform | Android TV | — |
| Built-in smart platform | Yes | — |
| Wi-Fi | Yes | Yes |
| Chromecast built-in | Yes | — |
| Connectivity | ||
| HDMI inputs | 3 | 2 |
| HDMI version | 2 | 2 |
| HDMI eARC | Yes | — |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 241 W | 245 W |
| Light source life | 20,000 h | 20,000 h |
| Light source life (eco mode) | 30,000 h | 30,000 h |
| Design & noise | ||
| Fan noise | 28 dB | 32 dB |
| Fan noise (eco mode) | 28 dB | 29 dB |
| Weight | 6.4 kg | 4.5 kg |
| Width | 420 mm | 337 mm |
| Height | 143 mm | 132 mm |
| Depth | 305 mm | 265 mm |
| Colours | Black | White |
