Water-resistant up to 50 metres, you can wear the Xiaomi Huami AmazFit Bip U Pro for swimming and it will track your movements and record your achievements even under water. 1.43” large HD colour screen Blood oxygen measurement GPS and GLONASS positioning systems Over 60 different exercise modes Built-in Amazon Alexa 50m water-resistant Blood-oxygen level measurement When feeling unwell, under mental stress or engaged in intensive workouts such as marathons and gym sessions, you can immediately measure your blood-oxygen saturation and understand your physical state. 60+ sports modes The Amazfit Bip U has 60+ exercise modes. These are outdoor running, treadmill, walking, outdoor cycling, indoor cycling, yoga, cricket, baseball, basketball, table tennis, badminton, free training, fishing, pool swimming, etc. 24/7 heart rate monitoring With its Huami-proprietary BioTracker PPG biological optical sensor, the AmazFit Bip U Pro can maintain continuous 24-hour heart rate monitoring and provide elevated heart rate warnings. Sleep quality monitoring Accurately monitor your sleep stages, including those of deep sleep, light sleep, REM, awake time and afternoon naps and interpret the characteristics to provide you sleep quality score and insight. PAI health assessment system PAI is a health evaluation system that uses algorithms to transform complex information such as heart rate data, activity duration and other health data into numerical values and presents this data to users.