I have a 12" iPad Pro, which I use in combination with Procreate for my comic. I have access to Clip Studio Paint on it, but the program is laggy with the kind of dense, oily, slightly-textured brushes I like to use, so it's not an option.
My wrist is beginning to inform me that actually, I may need to upgrade to a proper workstation Cintiq, which is not money I relish spending. I'm going to see how I go for the rest of this year.