compare apples and oranges

compare apples and oranges

To try to highlight the similarities between two different things—which typically cannot be done. You can't compare your job as a nurse to mine as an engineer—that's comparing apples and oranges!
See also: and, apple, compare, orange
References in periodicals archive ?
I just couldn't put my finger on it - until I realised I was trying to compare apples and oranges, as Dr Jo would say.
You cannot compare apples and oranges, and we enjoyed Harry Potter much more than TLOTR.