An affordable projector is always a good option to consider, so Optoma HD131Xe vs Nebula Mars Lite comparison definitely makes sense. Based on our rating, both projectors have the same overall rating of 6.6.
Advantages Optoma HD131Xe over Nebula Mars Lite
Bigger projection screen size: 38-301 inch vs 20-150 inch
Better brightness: 2500 vs 500 lumens
3D support
More HDMI connectors: 2 vs 1
Advantages Nebula Mars Lite over Optoma HD131Xe
Lower power consumption, 57 W vs 262 W
Wireless connection enabled
Longer lamp life (normal mode): 30000 vs 3500 hours