If you have an old phone in a drawer, and you listen very carefully, you can occasionally hear the occasional tap of an emitted SIM card hitting the side of the drawer as the phone transmutes to a lower-end model.
Decay Chain [Explained]
Transcript
[A decay flowchart, starting with the iPhone 16 Pro Max. It alpha decays into the 14 Pro Max, which alpha decays into 12 Pro Max and beta minus decays into the 15 Pro. The former beta minus decays and the latter alpha decays into the iPhone 13 Pro. The 15 Pro beta minus decays into the 16 Plus. The 16 Plus alpha decays and the 13 Pro [unlabelled] decays into the 14 Plus. The 14 Plus beta minus decays into the 15. The 15 alpha decays into the 13 which alpha decays into the 11 which alpha decays into the X which alpha decays into the 7.]
[Caption below the panel:] Physicists believe that an iPhone 16 Pro Max will, if left alone long enough, eventually decay into an iPhone 7, the heaviest stable model.