There has been a lot of talk lately about 108 MP cameras in smartphones, but could Xiaomi have something even bigger planned? Well, that is the subject of a new leak, with a Xiaomi device having been spotted sported a monster camera sensor.
https://www.notebookcheck.net/New-leak-gives-rise-to-the-possibility-of-a-256-MP-Xiaomi-smartphone-being-a-reality.449916.0.html
It's obviously some sort of merging, sensor shift or not, since it says "please hold still", probably something similar to Apple's deep fusion.
The concept is nothing new, the execution is everything.