The Mi Smart Band 8 Active is a feature-packed fitness tracker with a 1.47-inch AMOLED display, heart rate monitoring, SpO2 tracking, sleep monitoring, and 60+ fitness modes. It’s water-resistant up to 5 ATM, offers stress monitoring, menstrual cycle tracking, built-in GPS, and smart notifications. With long battery life, customizable watch faces, and a lightweight design, it’s your perfect fitness companion.