Objectively, before electronics, were those buried in a newspaper or book any more worthy ?
You make a good point.
I would say smartphones are more all-encompassing than books or newspapers ever were. You can be hooked up to them in some way wherever you are, not just on the tube or train. You never saw people walking down the street reading the paper or a book, for instance. So, yes, they are a more powerful distraction from the world around us.