/diy/ - Do It Yourself

tl,dr; is the pex ring on the left as good as the one on the right?

I'm going to convert some of my copper supply lines to pex, and I would like to buy the style of ring shown on the left, that has the part sticking out that you squeeze, because the same tool works on any diameter. I've read that either type is ok, but my plumber friend says I should use the simple ring type that requires a calibrated tool that only does one or two diameters (maybe more with inserts?).