It makes sense comparing Optoma ML750 vs Optoma UHL55 because they both are able to give some premium features. Based on our rating, ML750 has a total rating of 5.6 out of 10 versus 9 for UHL55.
Advantages Optoma ML750 over Optoma UHL55
Lower power consumption, 62 W vs 170 W
Advantages Optoma UHL55 over Optoma ML750
Bring the cinematic 4K UHD experience home with the UHL55
Bigger projection screen size: 30-200 inch vs 17-100 inch