It makes sense comparing Optoma X600 vs Optoma UHL55 because they both are able to give some premium features. Based on our rating, X600 has a total rating of 7 out of 10 versus 9 for UHL55.
Advantages Optoma X600 over Optoma UHL55
Bigger projection screen size: 23-300 inch vs 30-200 inch
Better brightness: 6000 vs 1500 lumens
Advantages Optoma UHL55 over Optoma X600
Bring the cinematic 4K UHD experience home with the UHL55
Lower power consumption, 170 W vs 380 W
UHL55 is HDR-compatible
Wireless connection enabled
Longer lamp life (normal mode): 20000 vs 2500 hours