The Optoma HD27e vs BenQ TH671ST comparison proves that these projectors have many common features. Based on our rating, HD27e has a total rating of 7 out of 10 versus 7.3 for TH671ST.
Advantages Optoma HD27e over BenQ TH671ST
Better brightness: 3400 vs 3000 lumens
Lower noise level, 27 dB vs 33 dB
Lower power consumption, 330 W vs 355 W
3D support
Advantages BenQ TH671ST over Optoma HD27e
Wireless connection enabled
Longer lamp life (normal mode): 4000 vs 3500 hours