I'm new to xamarin so I'm still trying to figure out how some things work.

The things is, I wanted to create a simple application where the user will recieve an email if his account logged in into an unknown device (yes, it looks like a login alerts).

Correct me if my proposed method is incorrect, I want to create a list of every known device each user has logged in, and compare it to a current device the login attempt was made. Is there a way where I can use a unique android device ID in Xamarin that I can use for this situation?

Any answers/suggestions will be much appreciated