The Xiaomi Mi 10 2021 New Year Edition phone has turned up in some marketing images posted by the official Xiaomi account on Chinese social media. There is a good look at both the likely Snapdragon 870-powered Mi 10 from the rear and the phone's box, and a price tag is also revealed: 3,399 yuan (US$525/€439).
https://www.notebookcheck.net/Xiaomi-Mi-10-2021-New-Year-Edition-phone-box-and-price-appear-in-marketing-material-Rumored-120-Hz-AMOLED-and-Snapdragon-870-for-3-399-yuan-US-525.518408.0.html