When it comes to cameras, batteries and speakers, it's very much not true that good things come in small packages. And yet Xiaomi managed to fit no less than five cameras, a 5,2560mAh battery and a 1cc speaker chamber inside the Mi Note 10. Disassembly photos and a video show the deceptively simple design that made this possible. Technically, this is the Xiaomi Mi CC9 Pro, but it's essentially identical to the Note 10 (it's a matter of a different name for the different markets). It all starts with peeling off the glass back. After that, there are a few layers - the NFC antenna, a...
Source: https://www.gsmarena.com/xiaomi_mi_note_10_cc9_pro_disassembly_shows_how_it_all_fits_together-news-40060.php