At this point, it's no news that that the Samsung Galaxy S11+ will feature a main 108 MP camera. A few days ago, popular leakster Ice Universe confirmed that the 108 MP sensor will be different from the one Xiaomi used on the Mi Note 10. More details of the sensor have now been revealed.
For one, the sensor is called the ISOCELL Bright HM1. The one on the Mi Note 10 and Mi Mix Alpha is the ISOCELL Bright HMX. While the ISOCELL Bright HMX uses 4-to-1 "Tetracell" binning to achieve a 1.6µm pixel size, the ISOCELL Bright HM1 on the Galaxy S11+ will use 9-to-1 merging to achieve a 2.4µm pixel size.
Again, none of this is news, as we've already talked about the benefits of a sensor outputting pixels with such a size. A 2.4µm pixel size is thrice the pixel size of the 12 MP sensors Google, Samsung, and Apple used on their flagships this year, and about 1.4 times the pixel size of the 40 MP Sony IMX600 Huawei favors.
S11+ unique new generation 108MP sensor seems to be called ISOCELL Bright HM1. It is a more advanced Nonacell technology than Tetracell. It merges a cluster of 9 pixels into a single pixel and allows 0.8μm pixels to be converted to 2.4μm pixels, greatly improving Low-light shoot
— Ice universe (@UniverseIce) December 18, 2019