When it comes to tactics and close combat, a holographic sight is better. For self-defense and protecting your home, a red dot reflex sight is better. Holographic sights are better than red dot sights when it comes to zooming in. The size of the aiming circle or reticle doesn't change when you zoom in on a holographic sight. But with a red dot sight, the reticle gets bigger, which can hide the point of impact.