Sony VPLHW45ES vs ViewSonic PA503S comparison definitely makes sense. Based on our rating, VPLHW45ES has a total rating of 7.3 out of 10 versus 5.6 for PA503S.
Advantages Sony VPLHW45ES over ViewSonic PA503S
Bigger projection screen size: 40-300 inch vs 30-300 inch
3D support
More HDMI connectors: 2 vs 1
Advantages ViewSonic PA503S over Sony VPLHW45ES
Better brightness: 3600 vs 1800 lumens
Lower noise level, 34 dB vs 35 dB
Lower power consumption, 260 W vs 310 W
Longer lamp life (normal mode): 5000 vs 4000 hours