The Xiaomi 17 Ultra will be unveiled on December 25, and it will be joined by the Xiaomi Watch 5. This new wearable will be Xiaomi's highest-end yet, featuring a stainless steel case and a sapphire crystal on top of its screen - both standard materials for high-end analog watches. The Xiaomi Watch 5 will feature an EMG (electromyography) sensor, which is used to detect electrical signals produced by your muscles. This could be used to enable gesture navigation - like flicking your wrist or tapping your fingers in the air, that sort of stuff. EMG could also be used to analyze muscle...
Source: https://www.gsmarena.com/xiaomi_watch_5_is_coming_this_week_with_an_emg_sensor_and_the_snapdragon_w5_soc-news-70840.php