There is no comparison between cheap red dots and Aimpoints. The Comp M's, H1/T1/T2's, and Pro models are quite possibly one of the two most durable and reliable optic brands/models available. Battery life is excellent. I am still on the same Lithium AA battery in an issued Comp M4 since 2011 that has never been turned off. Everything man made can break, but Aimpoints are about the closest thing to a sure bet that you can buy.
I am sure the other models of Aimpoints like the one above are just as good, however I have limited time with them.
