Samsung provides a deep dive for the Galaxy S21 Ultra's new 108MP camera sensor The Galaxy S21 Ultra has a new top-end image sensor. (Source: Samsung) The Galaxy S21 Ultra launched with a new 108MP main shooter, even though the OEM did not introduce it by name exactly during the show. However, it is apparent that it is called the ISOCELL HM3, the first of its kind to debut with nine-pixel binning and a 0.8 micron pixel size. Samsung asserts that it can enhance dynamic range, clarity and detail compared to its predecessors. Internet of Things (IoT), iOS, Wearable, Ticker The Ultra was the only Galaxy S21 variant to debut with an 108MP sensor, leaving its siblings to make do with a top resolution of 64MP. Oddly, the highest-end model's new camera is not the ISOCELL HM2 that launched in late 2020, but is the HM3 instead.