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- ViewSonic PX-K
ViewSonic
ViewSonic PX-K: every generation
4 generations from 2018 to 2023, latest — ViewSonic PX749-4K. What each generation gained and lost.
2023
ViewSonic PX749-4K
3840 × 2160 (4K UHD)4,000 lmLamp3 kg
Better than PX748-4K
- Light source life 4,000 h → 40,000 h
- Ethernet (LAN)
Worse
PX748-4K vs PX749-4K — full comparison
- Weight 2.8 kg → 3 kg
2021
Better than PX701-4K
- Brightness (ANSI / ISO lumens) 3,200 lm → 4,000 lm
- Optical zoom 1.1× → 2×
Worse
PX701-4K vs PX748-4K — full comparison
- Light source life 6,000 h → 4,000 h
- Fan noise 31 dB → 32 dB
- Power consumption 290 W → 310 W
2021
Better than PX727-4K
- Brightness (ANSI / ISO lumens) 2,200 lm → 3,200 lm
- Maximum refresh rate 120 Hz → 240 Hz
- Light source life 4,000 h → 6,000 h
- Fan noise 33 dB → 31 dB
Worse
PX727-4K vs PX701-4K — full comparison
- Optical zoom 1.2× → 1.1×
2018
The first generation in our catalog.
Specifications
Key specs by generation
| PX727-4K · 2018 | PX701-4K · 2021 | PX748-4K · 2021 | PX749-4K · 2023 | |
|---|---|---|---|---|
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) |
| 4K method | 4K by pixel shifting | 4K by pixel shifting | 4K by pixel shifting | 4K by pixel shifting |
| Brightness (ANSI / ISO lumens) | 2,200 lm | 3,200 lm | 4,000 lm | 4,000 lm |
| Throw ratio | 1.5:1 | 1.5:1 | 1.13:1 | — |
| HDR support | Yes | Yes | Yes | — |
| Built-in speakers (total output) | 10 W | 10 W | 10 W | — |
| Fan noise | 33 dB | 31 dB | 32 dB | — |
| Weight | 4.2 kg | 2.8 kg | 2.8 kg | 3 kg |
| Score | 4.0 | 7.3 | 6.3 | — |