Xiaomi's Mi 11 Ultra has been torn down, and its new ISOCELL GN2 camera is just as large as it looks on the outside. The teardown video reveals the Mi 11 Ultra's extensive cooling system, too.
https://www.notebookcheck.net/Xiaomi-Mi-11-Ultra-teardown-reveals-its-elaborate-cooling-system-and-the-giant-ISOCELL-GN2-camera-system.530557.0.html