>I think the more meaningful difference is life before and after mobile phones. This is one of those technologies that changes everything,I disagree somewhat and it's possible the disagreement depends on how we slice up the time ranges of "mobile phone" and "internet".
The "internet" divided into 2 periods:
pre- www internet: 1980s text based, Usenet, government and universities:
post- www internet: 1990s graphics on webpages, google, wikipedia, amazon
The "mobile phones" divided into 2 periods:
"dumb phones" pre 2007 of Motorola/Nokia
"smart phones" post 2007 in the iPhone/Android world
Thinking back to 2006, the internet changed daily life much more meaningfully than mobile phones. When I got the "dumb phone" in the 1990s that cost 70 cents a minute, it didn't change my daily life the way Google/Wikipedia/Amazon did. To this day, I probably do 20+ queries on google.com every single day. I hardly interact with my iPhone and I don't install apps on it. In 1998, I remember booking a plane ticket online (the fancy new "e-ticket") from Southwest Airlines and it seemed magical when the gate agent let me board the plane even though I hadn't spoken to a single human being. I'd agree that pre-1990s internet of dialing up into BBS's and chatting on Usenet felt more like a toy than a necessity of life.
I'm guessing the folks favoring "mobile phones" as more life-changing than the internet are thinking of post-2007 smartphones. (But I'd argue part of what makes smartphones "smart" is the internet.)
If society were forced to choose, I'm confident most would rather have full internet with no mobile phones rather than 100% mobile phone coverage and zero internet infrastructure. Since both technologies grew up together, we can only entertain though experiments about which technology is more meaningful to humanity.