Humans have a bunch of digital components at their core: DNA, RNA, and peptides. It's not all analog.

Likewise, phones have numerous analog components: microphone, speaker, camera, screen, radio modem, power regulation.

Please don't equate the word "digital" to the notions of being electronic, man-made, or modern. Digital is simply an agreement between a sender and receiver that information is finite and perfectly copyable. (By contrast, analog information is infinite and cannot be copied perfectly.)