It makes sense comparing Optoma HD143X vs ViewSonic PX747-4K because they both are able to give some premium features. Based on our rating, HD143X has a total rating of 6.6 out of 10 versus 7.3 for PX747-4K.
Advantages Optoma HD143X over ViewSonic PX747-4K
Bigger projection screen size: 37-307 inch vs 60-200 inch
3D support
Advantages ViewSonic PX747-4K over Optoma HD143X
Bring the cinematic 4K UHD experience home with the PX747-4K
Better brightness: 3500 vs 3000 lumens
Lower noise level, 27 dB vs 31 dB
Lower power consumption, 310 W vs 330 W
PX747-4K is HDR-compatible
Longer lamp life (normal mode): 4000 vs 3500 hours