The 10 Plus, along with the smaller 10, are the first two phones that will attempt to sell you on a 21:9 screen - Sony may want you to think the flagship Xperia 1 is the true ambassador of the crazy-tall aspect, but that one is months away and the 10s are here now.
Source: https://www.gsmarena.com/sony_xperia_10_plus-review-1906.php
