Transferring things from one Android phone to another:
Calendar (content available in device only)
Music and videos (only content that are DRM free and this does not support iCloud)
App data (if you previously had Galaxy devices only and it should be M OS)
Home layouts (if you previously had Galaxy devices only and it should be M OS)
Use the Smart Switch to scan and transfer content that are stored on the device as well as the SD card. Sometimes you would have to re-download the apps to have an exact Android replacement on your new phone. If any particular app is not available in your new Galaxy, Smart Switch Mobile comes with an app matching and recommendation tool to find your favorite apps or similar replacements for them.