Is reading a book on a Kindle or iPad fundamentally different than on paper? Is talking to Grandma who lives across the country on Facetime wrong while not talk

Is reading a book on a Kindle or iPad fundamentally different than on paper? Is talking to Grandma who lives across the country on Facetime wrong while not talking to her at all is “better?” It seems like mindfulness of what you are doing is more important than the means by which you do it.