My family has me in their contacts app (the google one: https://play.google.com/store/apps/details?id=com.google.android.contacts). If they enter my email for that contact my google account avatar will be displayed for that contact. I will probably change that avatar from time to time. The question is: Will the avatar will be updated in a automatic way and if so how long does it take to sync? Or maybe the avatar is imported only during manual contact creation/editing?