Galaxy S21 Ultra is a small improved version of S20 Ultra. Using HM3 sensor, single pixel is still 0.8um, 108MP, laser focus, no ToF.— Ice universe (@UniverseIce) November 6, 2020
Small correction/update in upcoming S21 models. S21+ and 21 Ultra are basically reversed.— Ross Young (@DSCCRoss) November 6, 2020
S21 is still Gray, Pink, Violet and White.
S21+ is Black, Silver and Violet with Pink in Korea.
S21 Ultra is Black and Silver.