Xiaomi Band 9 Activity Band

1.62-inch AMOLED Touch Display Up to 21-day battery life 10% improved sensor performance: SpO2 value, continuous sleep monitoring, heart rate monitor, step and calorie counter, sleep breathing monitoring. PROFESSIONAL WORKOUT ANALYSIS: Over 150 training modes with up to 10 running routes and vibration and light up reminders to achieve speed and heart rate goals. 20 Vibration Modes The new linear motor provides 20 different vibration motor, which can be easily distinguished from each other to accompany the workout or receive notifications.