When activated, Smart Downloads will pick some of your favorite songs and make sure they are available to you anywhere. Downloads take place only while your device is connected to Wi-Fi and happen overnight to save on data. Users will be able to select how many songs they want the app to download in their settings.
Smart Downloads is an expansion of an existing YouTube Music feature called Offline Mixtape. When enabled, YouTube Music will create a mix of songs you like as well as songs that fit your taste profile and downloads it to your phone so you can listen to it without being connected to the internet. The feature is still available alongside Smart Downloads, so you can continue to get your mix of music discovery along with access to your favorite jams while offline.