You can use the pedometer to keep track of your step count while walking, engaging in your normal daily activities, etc.

Daily Step Target Attainment Alert

flashes to let you know when you attain your daily step target.

Step Reminder

Studies suggest that sitting too much is bad for the health.
Step Reminder displays an indicator and sounds an alert when it determines you have not walked enough during a specific period. This is valuable feedback that helps achieve your exercise goals.
If the watch performs a Step Reminder alert operation, get up and walk for about five minutes to clear it.