I love this! Innovation isn’t sometimes new tech, but cheaper pricing. Especially with electronic shifters, shifter design plays less of a role. (E. g. I do feel the difference between a Deore and an XT trigger shifter.)
That is huge in my opinion and makes Shimano’s 105 Di2 pricing seem outright silly. Can’t wait for your review. BTW, is that your first drivetrain review?
If I had to guess (I haven’t read any of the reviews yet), then at least for the electronic rear derailleur the internals are likely identical to its bigger siblings. So that’d make sense.
Apex should be a tier lower than GX. How do the rear derailleurs compare price-wise?