[dionidium]

It seems plausible to me that something similar was driving Alito's question about compact discs, which this article also derisively referenced. It sounds to me like he might have been attempting an analogy about physical media in order to find out if there were meaningful lines to be drawn between types of storage.

[rayiner]

I think you are correct: https://www.supremecourt.gov/oral_arguments/argument_transcr.... Starting on page 17, the Justices are addressing the argument that California downloads everything on the phone, and that a smartphone has one's "whole life" on it. Justice Roberts asks "what if it's a FitBit and not a smartphone?" Justice Alito then raises the examples of a flip phone and then a CD.