The Optoma HD143X vs BenQ TH671ST comparison proves that these projectors have many common features. Based on our rating, HD143X has a total rating of 6.6 out of 10 versus 7.3 for TH671ST.
Advantages Optoma HD143X over BenQ TH671ST
Bigger projection screen size: 37-307 inch vs 30-300 inch
Lower noise level, 31 dB vs 33 dB
Lower power consumption, 330 W vs 355 W
3D support
Advantages BenQ TH671ST over Optoma HD143X
Wireless connection enabled
Longer lamp life (normal mode): 4000 vs 3500 hours