I'm not sure I know this answer as I have not looked intensely into it. I guess the thing is that clearomizers are like a small tank. They have no filler... just wick and juice vaping. I also heard that the older models of clearomizers aren't as good so the only product I bought, am fully satisfied and am likely to not look at anything else are CE2 5th edition clearomizers. Sorry I don't know enough about the term clear cartomizers.
That's ok, they do sound and look a bit different from what your saying. Perhaps the tank is what sets clearomizers apart from a clear cartomizer. Im not sure about the wick, but thus far every carto Ive used or seen pictures of didn't use wicks or tanks.
I like the look of these clearomizers for one primary reason, that would be the tank. Id much rather fill something less often than every few hours. Cartomizers are more convenient than attys by far but even the largest ones need to be filled once a day or more.
I'm thinking the tank would alow you to just shake the device whenever you want to saturate the wick. With a setup like this im guessing I could probably go a couple days or more without adding liquid, with moderate vaping. That's a wild guess but the tank looks like it would prolong the time between refills.
I am a bit concerned about how well wicks perform though, and how fast they can get liquid to the heating element. Do they do well with a 50VG E-liquid for example?