If you ever wanted to see how you connected during your day, how often you changed carriers, or what the name of that random WiFi hotspot you auto-connected to, this is the page for you! 

For free users, you will only see the name of the carrier being used (or airplane mode) and the name of the WiFi network you were connected to (if any). 

For Pro users, you'll see the history menu below. It provides more granular details about the signal levels, what cellular technologies were being used (if applicable), which bands, as well as the approximate location. This feature is great if you want to know where you had signal issues or for bug reporting purposes.