It makes sense comparing Sony VPLHW45ES vs ViewSonic PX747-4K because they both are able to give some premium features. Based on our rating, both projectors have the same overall rating of 7.3.
Advantages Sony VPLHW45ES over ViewSonic PX747-4K
Bigger projection screen size: 40-300 inch vs 60-200 inch
3D support
Advantages ViewSonic PX747-4K over Sony VPLHW45ES
Bring the cinematic 4K UHD experience home with the PX747-4K