What is the red or green dot on Apple Watch?
The small red dot icon (which may appear, to some users, to be green) at the centre top of the watch face indicates that you have one or more unread notifications.
Why is the red dot not showing on my Apple Watch?
Tip: To keep the red dot from appearing on the watch face, open the Settings app on your Apple Watch, tap Notifications, then turn off Notifications Indicator.
What are the four green dots on my Apple Watch?
The Explorer watch face (available on Apple Watch with cellular) prominently features green dots, which indicate cellular signal strength.