The Optoma HD29Darbee vs BenQ TH671ST comparison proves that these projectors have many common features. Based on our rating, HD29Darbee has a total rating of 7 out of 10 versus 7.3 for TH671ST.
Advantages Optoma HD29Darbee over BenQ TH671ST
Better brightness: 3200 vs 3000 lumens
Lower noise level, 29 dB vs 33 dB
Lower power consumption, 264 W vs 355 W
3D support
Longer lamp life (normal mode): 5000 vs 4000 hours