There is no complete list of all 150 sports modes of the Redmi Watch 4 published by Xiaomi. Instead, Xiaomi merely mentions that the watch has 150 sports modes without listing them in detail.
Health monitoring: 24/7 heart rate monitoring Blood oxygen saturation (SpO2) measurement Sleep monitoring with sleep phase analysis (deep, light, REM sleep) Stress monitoring Cycle monitoring for women
3. sports and fitness: Over 150 sports modes Built-in GPS for precise location tracking Activity goals and pedometer Calorie consumption display Vitality score (a combination of different health metrics)
4. smart functions: Call notifications and answering Music control Notifications for apps and messages Weather forecast Remote camera shutter release for the smartphone Integration with Alexa (when connected to a smartphone) Synchronisation with Google Fit, Strava and Suunto