A select handful of mobile device OEMs design their own custom silicon, and Xiaomi has just re-joined these ranks with the new Surge C1. Unlike other first-party chipsets, this one is a new image signal processor designed specifically for the company's new flagship foldable device. It controls a cutting-edge liquid lens, as well as a multi-use sensor.
https://www.notebookcheck.net/The-Surge-C1-is-Xiaomi-s-return-to-the-in-house-chipset-market.530322.0.html