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- LS751HD vs Horizon 20
ViewSonic LS751HD vs XGIMI Horizon 20
What LS751HD does better (5) and where Horizon 20 wins (5) — every spec side by side.
vs
7.7Picture6.6
5.0Gaming & inputs8.5
8.4Setup & placement9.2
5.2Noise, lifetime & portability6.5
Dimensions
Size comparison
LS751HDHorizon 20
| LS751HD | Horizon 20 | Difference | |
|---|---|---|---|
| Height | 132 mm | 249 mm | −117 mm |
| Width | 337 mm | 298 mm | +39 mm |
| Depth | 265 mm | 190 mm | +75 mm |
| Weight | 4.5 kg | 4.8 kg | −0.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is LS751HD better than Horizon 20?
- Brightness (ANSI / ISO lumens)5,000 lm vs 3,200 lm+56%
- Contrast ratio (dynamic / claimed)300,000:1 vs 20,000:115×
- Ethernet (LAN)Yes · Horizon 20: No
- Optical zoom2× vs 1.25×+60%
- Weight4.5 kg vs 4.8 kg+7%
Why is Horizon 20 better than LS751HD?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Built-in speakers (total output)10 W vs 24 W2.4×
- Lens shiftVertical vs Vertical and horizontal
- Automatic keystone correctionNo · LS751HD: Yes
- Fan noise32 dB vs 28 dB+14%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | Laser | RGB triple laser |
| Brightness (ANSI / ISO lumens) | 5,000 lm | 3,200 lm |
| Contrast ratio (dynamic / claimed) | 300,000:1 | 20,000:1 |
| HDR support | Yes | Yes |
| HDR formats | — | HDR10+, Dolby Vision |
| Dolby Vision | — | Yes |
| Colour gamut (BT.2020) | — | 110% |
| Motion interpolation (MEMC) | — | Yes |
| 3D playback | Yes | Yes |
| Gaming | ||
| Input lag | — | 1 ms |
| Maximum refresh rate | 120 Hz | — |
| Game / low-latency mode | — | Yes |
| VRR / ALLM | — | Yes |
| Lens & placement | ||
| Throw ratio | 1.4:1 | 1.2:1 |
| Throw ratio (zoomed in) | 2.24:1 | 1.5:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 3.1 m | 2.66 m |
| Smallest image size | 30″ | 40″ |
| Largest image size | 300″ | 300″ |
| Optical zoom | 2× | 1.25× |
| Lens shift | Vertical | Vertical and horizontal |
| Autofocus | — | Yes |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | No | Yes |
| Obstacle avoidance | — | Yes |
| Automatic screen fit | — | Yes |
| Built-in stand / gimbal | — | Yes |
| Sound | ||
| Built-in speakers (total output) | 10 W | 24 W |
| Smart & streaming | ||
| Smart platform | — | Google TV |
| Built-in smart platform | — | Yes |
| Netflix (officially licensed) | — | Yes |
| Wi-Fi | Yes | Yes |
| Bluetooth | — | Yes |
| AirPlay | — | Yes |
| Chromecast built-in | — | Yes |
| Internal storage | — | 128 GB |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| HDMI version | 2 | — |
| HDMI eARC | — | Yes |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 245 W | — |
| Light source life | 20,000 h | 20,000 h |
| Light source life (eco mode) | 30,000 h | 25,000 h |
| Design & noise | ||
| Fan noise | 32 dB | 28 dB |
| Fan noise (eco mode) | 29 dB | — |
| Weight | 4.5 kg | 4.8 kg |
| Width | 337 mm | 298 mm |
| Height | 132 mm | 249 mm |
| Depth | 265 mm | 190 mm |
| Colours | White | Grey |
