Which at the time the Redmi K20 Pro was an unmatched value for the dollar. The Redmi K30 Pro was released later and this was sold as the Poco F2 Pro in quite a few markets. The Poco name harkens back to that of the Poco F1 Pro aka the original "OG" flagship killer. To make matters worse, we already have evidence of one of the devices released, although the Redmi K40 is an unlikely choice, that the Redmi K40 Pro or the Redmi K40 Pro Plus will be released as the Poco F3 Pro.
It seems like in the haste to fill every niche in the market with a phone from the Redmi K40 lineup that Redmi has completely forgotten what a "flagship killer" actually was. Instead the Redmi K40, Redmi K40 Pro, and Redmi K40 Pro Plus are now Xiaomi's budget gaming phones. In order for the Redmi K40 Pro to be a "flagship killer" the Redmi K40 Pro, or even the Redmi K40 Pro Plus need to address the biggest flaw since it's inception. Part of the reason people buy flagship phones is because they have flagship cameras and flagship battery life.
This is ultimately where the Redmi K40 Pro and Redmi K40 Pro Plus absolutely fall flat on their face and fail. At the time of release of the Poco F1 the Poco F1 had a flagship camera and performed well as you can see here. On top of that Poco was great about adding features like 4k 60 after the fact as you can check out in a video here. In fact the Poco F1 camera wasn't only a flagship in it's features, the flagship Xiaomi devices the Poco F1 was released, Xiaomi Mi 8, had the same camera sensor.
This is where the Redmi Note 10 Pro creates a massive problem for the Redmi K40, Redmi K40 Pro and Redmi K40 Pro Plus. See in many ways Redmi is launching the Redmi K40, Redmi K40 Pro, and Redmi K40 Pro Plus on the legacy of devices that were bonafide value kings with an aim at giving people a great all around device. Unfortunately, the king of value and overall "great experience for the price" can't go to the Redmi K40, Redmi K40 Pro, or Redmi K40 Pro Plus, the new king is the Redmi Note 10 Pro.
First we can start at the display of the Redmi Note 10 Pro and how it's likely to compare to the display of the Redmi K40 Pro. It's been confirmed that the Redmi Note 10 Pro Max is going to be shipping with a 120hz AMOLED display. If that sounds similar to the display of the Redmi K40 Pro, it's because it is. Redmi decided to give the Redmi K40 Pro a Samsung E4 display. The Redmi K40 Pro display is one of the standout flagship features of the Redmi K40 Pro, Poco F3 Pro. But if the Redmi Note 10 Pro has a slightly lower quality 120hz AMOLED display how many people are going to actually be able to tell the difference. What's more, is the small difference in display going to dissuade that many people away from buying a Redmi Note 10 Pro compared to the Redmi K40 Pro?