[andsoitis]

In 2006/07, before smart phones, life expectancy was 68 years against today’s 73.5.

Extreme poverty was 27% vs 10% today.

Literacy has gone up from 82% to 87%.

[vouaobrasil]

It's likely those statistics would have been improved even without the invention of the smartphone.

[andsoitis]

Yeah, it isn't really possible to insert/remove a major development (like smartphones) from history and accurately predict how the world would have or would not have turned out.