The Optoma HD26 vs Optoma GT5600 comparison proves that these projectors have many common features. Based on our rating, HD26 has a total rating of 6.6 out of 10 versus 8 for GT5600.
Advantages Optoma HD26 over Optoma GT5600
Bigger projection screen size: 37-307 inch vs 80-100 inch
Lower power consumption, 262 W vs 285 W
Longer lamp life (normal mode): 5000 vs 4000 hours