Google Analytics can identify that two sessions are from the same user if
the sessions happen in the same browser on the same device
the sessions happen on the same day
the sessions happen in the same browser
the sessions occur within 30 minutes of each other
Google Analytics can identify that two sessions are from the same user if
Explanation:
This information in this article only applies to web tracking. The calculations don’t apply if you’re collecting data using an Analytics SDK for any mobile OS.
The concept of a session in Analytics is important to understand because many features, reports, and metrics depend on how Analytics calculates sessions.