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A die shot of an ESP32
(upload.wikimedia.org)
Source: https://commons.wikimedia.org/wiki/File:ESP32-Dieshot.jpg
It's interesting how they are able to fit some much in a small space ~~considering most of it appears to be memory~~.
Inductors! They are being used for the RF stuffs (and maybe some clock PLLs).
Had no idea you could put inductors ON the die, but in hindsight, I guess there's no reason why not.
~8.5mm^2 of pure magic as far as I'm concerned.