I've never used a calculator in a meeting. And while people will bring a laptop for convenience it's usually to show slides, a thing that can be easily enough done without the laptop. Or to take notes, which is even easier to do by hand. And a smartphone isn't needed at all.

So, really, I don't think the comparison works out.

The calculator is the example that's most directly an important tool that short-circuits something you could do by hand. But again, I've never used one in a meeting and it's not the kind of thing you'd be doing much of in a meeting.