It makes sense comparing Epson EX3210 vs ViewSonic M1 because they both are able to give some premium features. Based on our rating, both projectors have the same overall rating of 5.3.
Advantages Epson EX3210 over ViewSonic M1
Bigger projection screen size: 30-350 inch vs 24-100 inch
Better brightness: 2800 vs 250 lumens
Advantages ViewSonic M1 over Epson EX3210
Lower noise level, 32 dB vs 37 dB
Lower power consumption, 55 W vs 283 W
Longer lamp life (normal mode): 30000 vs 4000 hours