The Mi 10 and Mi 10 Pro have proven immensely popular for Xiaomi, but so has the Redmi K30 series. The Redmi K30 4G and Redmi K30 5G have only been available for a month and two months respectively, but the series has already exceeded 1 million sales. With the Redmi K30 starting at CNY 1,599, that equates to at least US$230 million in sales. These figures do not include the POCO X2, either.
https://www.notebookcheck.net/Xiaomi-Redmi-K30-sales-hit-the-equivalent-of-US-230-million-in-sales-in-under-three-months.455219.0.html