Is it fair to say that all of Sony's greatest hits were hardware based, especially things with moving parts (Walkman etc), and that they aren't so great with So

Is it fair to say that all of Sony's greatest hits were hardware based, especially things with moving parts (Walkman etc), and that they aren't so great with Software? These days, when the parts of (say) an android phone can be sourced from a multitude of places, software is the much greater differentiator.