Whats the easiest method for backing up the Samsung S6?

[kwitel]

Im actually asking this question for my girlfriend; I do not own the phone.

Is there a Desktop Software available for a local backup or maybe some other, easier method?

Thanks in advance.

 

[B. Diddy]

Smart Switch is Samsung's desktop backup/data transfer software.

 

[kwitel]

Smart Switch is Samsung's desktop backup/data transfer software.

Ok, I thought that was only for moving data from one phone to another.

Thanks!