The Optoma ML750 vs BenQ TH671ST comparison proves that these projectors have many common features. Based on our rating, ML750 has a total rating of 5.6 out of 10 versus 7.3 for TH671ST.
Advantages Optoma ML750 over BenQ TH671ST
Lower noise level, 30 dB vs 33 dB
Lower power consumption, 62 W vs 355 W
3D support
Advantages BenQ TH671ST over Optoma ML750
Bigger projection screen size: 30-300 inch vs 17-100 inch