I started out with a ZOOP and just stepped up to a Perdix AI. As Lat stated, what kind of diving? Do you want air integrated? My ZOOP is going to one of my sons and I bought a used one for my other son who also dives. This will fit their need for the next few years while they gain more experience. I’m doing more wreck diving and wanted Blue Tooth air integration, and that awesome color screen for my aging eyes.