An affordable projector is always a good option to consider, so ViewSonic PA503X vs Nebula Mars Lite comparison definitely makes sense. Based on our rating, both projectors have the same overall rating of 6.6.
Advantages ViewSonic PA503X over Nebula Mars Lite
Bigger projection screen size: 30-300 inch vs 20-150 inch
Better brightness: 3600 vs 500 lumens
3D support
Advantages Nebula Mars Lite over ViewSonic PA503X
Lower power consumption, 57 W vs 260 W
Wireless connection enabled
Longer lamp life (normal mode): 30000 vs 5000 hours