X and One fall in this category. They sound cool and could be any Amazon product under the sun. The problem though is the next iteration ie X2, X3 etc sound fine but One 2 sounds weird
That's how microsoft ended up with the Xbox One X and its successor the Xbox Series X. Many shoppers were confused, because when the preorders for the Series X went live the sales of the One X went up 700%.
One Plus naming is annoying because I want to add the two numbers together.