The Epson PowerLite 1771W vs Optoma HD142X comparison shows that these projectors have some important differences and common features. Based on our rating, PowerLite 1771W has a total rating of 6 out of 10 versus 7.3 for HD142X.
Advantages Optoma HD142X over Epson PowerLite 1771W
Lower noise level, 28 dB vs 40 dB
Lower power consumption, 260 W vs 322 W
3D support
Longer lamp life (normal mode): 5000 vs 4000 hours