The ViewSonic PA503W vs Optoma HD29Darbee comparison proves that these projectors have many common features. Based on our rating, PA503W has a total rating of 6 out of 10 versus 7 for HD29Darbee.
Advantages ViewSonic PA503W over Optoma HD29Darbee
Better brightness: 3600 vs 3200 lumens
Lower power consumption, 260 W vs 264 W
Advantages Optoma HD29Darbee over ViewSonic PA503W
Lower noise level, 29 dB vs 33 dB
3D support
Longer lamp life (normal mode): 5000 vs 4500 hours