An affordable projector is always a good option to consider, so ViewSonic PA503S vs Optoma HD143X comparison definitely makes sense. Based on our rating, PA503S has a total rating of 5.6 out of 10 versus 6.6 for HD143X.
Advantages ViewSonic PA503S over Optoma HD143X
Better brightness: 3600 vs 3000 lumens
Lower power consumption, 260 W vs 330 W
Longer lamp life (normal mode): 5000 vs 3500 hours
Advantages Optoma HD143X over ViewSonic PA503S
Bigger projection screen size: 37-307 inch vs 30-300 inch