It makes sense comparing ViewSonic PA503S vs BenQ HT1075 because they both are able to give some premium features. Based on our rating, PA503S has a total rating of 5.6 out of 10 versus 7.3 for HT1075.
Advantages ViewSonic PA503S over BenQ HT1075
Bigger projection screen size: 30-300 inch vs 40-235 inch
Better brightness: 3600 vs 2200 lumens
Lower power consumption, 260 W vs 353 W
Longer lamp life (normal mode): 5000 vs 3500 hours