The Redmi K40 series seems to have been a massive hit among the Chinese audience, as it managed to sell over 300,000 units within five minutes of going on sale in China. That number includes all three Redmi K40 variants, including the Redmi K40, Redmi K40 Pro and Redmi K40 Pro Plus. The next round of sales will take place on March 8.
https://www.notebookcheck.net/The-Redmi-K40-series-racks-up-over-300-000-sales-within-five-minutes-of-launch-in-China.526225.0.html