I have two, they are great, a 14" 1080p one and a 16" 1600p one to match my laptop for dual screening on travels. both of mine have touch, the adds to cost and reduces the number available but makes it use ful for connection to another machine giving me an interface such that I don''t need to switch KVM, I typically have my phone on this in DEx mode.
Not sure how well stuff like this works on a Mac but as I have used mine on a Pi, phone, Linux etc I don't image it'd be a problem, perhaps the touch side might be problematic though mine comes up as Apple Magic, something or other in windows so perhaps it is fine
My bigger one has full size HDMI, this is much more convenient than mini HDMI that my 1080p one comes with as you always have the right cable, obviously downside is it is a chunkier screen with a bulge at the bottom, not as nice at the flat tablet style 14" one.
Both do pass though power but not a lot of wattage fine to keep phones powered rather than draining the phone battery.
I'd post a link but they are random Chinese brands that don't seem to exist anymore.
