System logs and "DumpSys" files can be extracted from Android phones. Android system keeps these files for debugging and monitoring purposes and the files can contain various system data like recent locations, recently connected Wi-Fi networks, recently launched and running applications, recent cell locations and signal info, current Bluetooth MAC address and name, etc.
These
files are listed in the System Logs section within the HTML and PDF
reports and can be directly opened by clicking on their filenames. Their
content is also used for analysis of Wi-Fi networks, Locations, and Notifications.