The BenQ HT2150ST vs BenQ TH671ST comparison proves that these projectors have many common features. Based on our rating, HT2150ST has a total rating of 7 out of 10 versus 7.3 for TH671ST.
Advantages BenQ HT2150ST over BenQ TH671ST
Lower power consumption, 353 W vs 355 W
3D support
Stereo sound vs mono from integrated speakers
Advantages BenQ TH671ST over BenQ HT2150ST
Bigger projection screen size: 30-300 inch vs 60-180 inch
Better brightness: 3000 vs 2200 lumens
Lower noise level, 33 dB vs 37 dB
Longer lamp life (normal mode): 4000 vs 3500 hours