The Huami Amazfit Band 6 has been confirmed thanks to a combination of some code digging and the fitness tracker appearing in all its glory on a retailer site. The Amazfit Band 6 comes with Amazon Alexa, blood oxygen monitoring, heart-rate tracker, menstrual cycle tracker, and stress detection. The "York" codename was previously thought to belong to a global version of the Xiaomi Mi Band 5.
https://www.notebookcheck.net/Huami-Amazfit-6-leaked-Global-York-variant-of-the-Xiaomi-Mi-Band-5-with-bloody-oxygen-monitor-Amazon-Alexa-and-24-hour-heart-rate-tracking.483761.0.html
The addition of a blood oxygen meter and what one of the spec pics says is a always on screen are very much appreciated. Hopefully it will come out soon. ;D