It makes sense comparing BenQ HT2050A vs Nebula Mars II because they both are able to give some premium features. Based on our rating, both projectors have the same overall rating of 6.6.
Advantages BenQ HT2050A over Nebula Mars II
Bigger projection screen size: 60-180 inch vs 30-150 inch
Better brightness: 2200 vs 300 lumens
Lower noise level, 29 dB vs 32 dB
3D support
More HDMI connectors: 2 vs 1
Advantages Nebula Mars II over BenQ HT2050A
Lower power consumption, 57 W vs 353 W
Wireless connection enabled
Longer lamp life (normal mode): 30000 vs 3500 hours