Ice Universe points out that the GN2 will be the largest sensor installed on a smartphone this year. It is a 50MP sensor with 1.4 .m in pixel size, while also offering 4-1 pixel binning. It also arrives with a Dual Pixel Pro autofocus system which promises faster and more accurate focus locking. The sensor can record 4K video at 120fps.
The Mi 11 Pro and Ultra are also expected to come with a 48MP periscope lens and 5x optical zoom (120X digital) as well as a 48MP ultra wide.
source/gsmarena