The Optoma ML750ST vs Epson PowerLite 680 comparison shows that these projectors have some important differences and common features. Based on our rating, ML750ST has a total rating of 7 out of 10 versus 6.6 for PowerLite 680.
Advantages Optoma ML750ST over Epson PowerLite 680
Lower noise level, 22 dB vs 35 dB
Lower power consumption, 77 W vs 373 W
3D support
Longer lamp life (normal mode): 20000 vs 5000 hours
Advantages Epson PowerLite 680 over Optoma ML750ST
Bigger projection screen size: 55-100 inch vs 30-80 inch