What are the App features of Redmi Watch 4? How to switch App layout?

Exercise, Exercise Record, Running Course, Training Status, Vitality Indicator, Heart Rate, Metabolic Value, Blood Oxygen, Sleep, Stress, Breathing Exercise, Women's Health, Alexa, Weather, Calendar, To-Do, Frequently Used Contacts, Phone, Music, Remote Photo Taking, Alarm Clock, Tomato Clock, Stopwatch, Countdown Clock, World Clock, Compass, Find Phone, Flashlight, Settings.
Switch App layout:
Go to [Watch Settings] >> [App Layout].