No, I was curious about why in your opinion is a Perdix is more capable in every regard as a dive computer.
In what regards is that, every other function as a dive computer? Why? As a dive computer they do the same things on a different display.
For me the edge on the Perdix is the screen size but I cannot think of anything else. On the Teric and for me the only notable difference was the brightness of the screen, the compass overlay and a while back, surface GF. But the brightness even in a couple inch viz is good enough that I can still see my MK2i.
Maybe I should have said "equal or better." The Perdix has a screen size advantage. Both the Perdix and the Teric have an underwater readability advantage. (Surprisingly, for my old eyes, the Teric is the most readable dive computer underwater that I have seen ever. The Perdix is very readable, and has more info and a great UI) They both have UI design advantages. They both can interface with industry standard AI transmitters. The Perdix has a replaceable battery (more of a preference thing).
There are other differences as a DC, but I can't think of them now, mostly because I would overall rate them about equal to the Mk2i on balance, or personal preference.
I just remembered another huge advantage of the Mk2i, but not as a DC. The Teric screen is useless in bright sun, the Perdix is not much better. The Mk2i is very readable in the brightest sun. I guess this has some advantage for diving before/after the dive, but is mostly a non-diving advantage.
Someone Mentioned Offline Topo Maps, etc. These are not DC functions. They are hugely valuable to some people that use the MK2i above water, but unavailable on a dive and only a very few divers use topo maps etc. to find their dive sites.
I have used the topo maps on the Mk2i mountain climbing. Part of why I like the Mk2i for me, but not a DC function, and not a function that most divers will use.
Let me express it this way:
If I was forbidden to use the Mk2i(or Perdix/Teric) above 1' of water I would hands down choose the Perdix/Teric (probably Perdix), despite missing the long range AI. Even if there was no price difference.
If I could only use the Mk2i(or Perdix/Teric) while actively preparing for/going to diving, I would still choose the Perdix/Teric(probably Perdix), but it would be a harder decision: underwater readability + UI + price + other(individual preferences)
vs. GPS + LR AI + surface readability.
Given the fact that I use the Mk2i for things other than diving, I am willing to give up the advantages of the Perdix/Teric(probably Perdix) for the advantages of the Mk2i despite the higher cost of the Mk2i.
My next dive computer will probably be a Perdix (while keeping my Mk2i and diving both together) though I am intrigued by the new Ratio computers. It will suck having to choose which AI transmitters to use, but will probably end up being SW Swifts and/or standard transmitters.