It makes sense comparing BenQ HT2150ST vs ViewSonic PX747-4K because they both are able to give some premium features. Based on our rating, HT2150ST has a total rating of 7 out of 10 versus 7.3 for PX747-4K.
Advantages BenQ HT2150ST over ViewSonic PX747-4K
3D support
Stereo sound vs mono from integrated speakers
Advantages ViewSonic PX747-4K over BenQ HT2150ST
Bring the cinematic 4K UHD experience home with the PX747-4K
Bigger projection screen size: 60-200 inch vs 60-180 inch
Better brightness: 3500 vs 2200 lumens
Lower noise level, 27 dB vs 37 dB
Lower power consumption, 310 W vs 353 W
PX747-4K is HDR-compatible
Longer lamp life (normal mode): 4000 vs 3500 hours