The Xiaomi Mi Smart Band 6 is a feature-rich fitness tracker that offers an upgraded 1.56-inch AMOLED display. It is designed to track 30 different fitness activities, including running, walking, and cycling, and supports automatic detection for six activities. With a long battery life of up to 14 days, the band is also equipped with an SpO2 sensor, heart rate monitoring, sleep tracking, and 5ATM water resistance, making it a solid choice for fitness enthusiasts.