The Galaxy S series has been around for over a decade but this year we’re starting to see some major changes as the company reshuffles its portfolio. The division between the S Ultra and the other S-phones has become quite stark, at the same time the division between the S Ultra and Note Ultra has blurred. Samsung introduced the Ultra badge a little under a year ago. Back then, the camera was the major difference between it and the Plus model. That is true this year as well, but the display has emerged as another important distinction. Easily the most impressive of the three new models...
Source: https://www.gsmarena.com/samsung_galaxy_s21_ultra_announced_with_s_pen_support_on_the_120_hz_screen_dual_telephoto_lenses-news-47218.php