There has been another reference to a Xiaomi Mi Band 5 Pro activity tracker discovered recently. A Pro variant of the wearable was already rumored due to it being mentioned in app code, and now it has been spotted again as "Kongming Pro" in a settings screenshot. The Mi Band 5 was released in June.
https://www.notebookcheck.net/Xiaomi-Mi-Band-5-Pro-named-in-activity-tracker-settings-screenshot.478892.0.html