The Optoma HD26 vs BenQ TH671ST comparison proves that these projectors have many common features. Based on our rating, HD26 has a total rating of 6.6 out of 10 versus 7.3 for TH671ST.
Advantages Optoma HD26 over BenQ TH671ST
Bigger projection screen size: 37-307 inch vs 30-300 inch
Better brightness: 3200 vs 3000 lumens
Lower noise level, 26 dB vs 33 dB
Lower power consumption, 262 W vs 355 W
3D support
Longer lamp life (normal mode): 5000 vs 4000 hours