Why do metrics and analytics show different failures?

Question

Google Analytics

Hello! Tell me, why does the metric show 15% bounces on the site, and Google analytics 70%?
Who to believe?

Answer 1

In Google, a failure is if no more than one page was opened.
In Yandex, if a page has been viewed for more than 15 seconds, then such a visit is no longer considered a bounce.
Therefore, you can believe in both, they just think differently.