It makes sense comparing ViewSonic M1 vs Epson PowerLite 1781W because they both are able to give some premium features. Based on our rating, M1 has a total rating of 5.3 out of 10 versus 7 for PowerLite 1781W.
Advantages ViewSonic M1 over Epson PowerLite 1781W
Lower noise level, 32 dB vs 39 dB
Lower power consumption, 55 W vs 309 W
Longer lamp life (normal mode): 30000 vs 4000 hours
Stereo sound vs mono from integrated speakers
Advantages Epson PowerLite 1781W over ViewSonic M1
Bigger projection screen size: 50-150 inch vs 24-100 inch