Huami, not to be confused with Huawei, produces wearables not only for Xiaomi but also has its own line of smartwatches and fitness trackers. The company recently released the Amazfit Verge 2 smartwatch with EKG functionality and is set to present the Amazfit GTR, a Grand Tour Racing model, on July 16.
https://www.notebookcheck.net/Amazfit-GTR-Huami-to-launch-its-new-smartwatch-on-July-16.427288.0.html