It makes sense comparing Epson EX3220 vs ViewSonic M1 because they both are able to give some premium features. Based on our rating, EX3220 has a total rating of 5.6 out of 10 versus 5.3 for M1.
Advantages Epson EX3220 over ViewSonic M1
Bigger projection screen size: 30-350 inch vs 24-100 inch
Better brightness: 3000 vs 250 lumens
Advantages ViewSonic M1 over Epson EX3220
Lower noise level, 32 dB vs 37 dB
Lower power consumption, 55 W vs 283 W
Longer lamp life (normal mode): 30000 vs 5000 hours