Well all I can give you info on is the Sherwood Wisdom 2 computer because it’s the one I have. I can tell you that I’m very happy with it. It’s air integrated and shows all the information you’ll ever need really. It also compensates for altitude dives and is nitrox ready for up to 50%. I think most dive computers now a-days perform similar functions. Of course it shows you small bar graphs displaying your PO2 levels, nitrogen levels, and ascent rate. It’s rated for about 399’ on gauge mode. Displays time to fly, has a planning mode, simulation mode, can plug it into a computer so you can review your dive. Takes into account safety stops and will also do decompression stops. I mean its great. I was going to go with a wireless wrist one but opted for this instead. I still like having a cable attached :-).