A couple of leaked images of the upcoming Xiaomi Mi Smart Band 5 global activity tracker have offered up some clues of what a Pro model of the wearable could deliver. According to the poster of the images, the global Mi Smart Band 5 does not feature NFC functionality, Alexa assistant, or the SpO2 pulse oximeter sensor for blood oxygen monitoring.
https://www.notebookcheck.net/Xiaomi-Mi-Smart-Band-5-global-activity-tracker-packaging-omits-NFC-Alexa-and-SpO2-possibly-held-back-for-a-Pro-model.480608.0.html