For MIUI phones, Redmi Watch 4 supports synchronizing the phone alarm clock to the watch for reminders, non-MIUI does not support it for the time being.
This feature does not need to be turned on, MIUI 9.2.27.6 and above, and the phone's clock App 12.8.01 and above can support it automatically.
Synchronized alarm clock will be reminded on both the watch and mobile at the same time, and the operation on either side, such as turning off the reminder/delaying the reminder, will take effect on both sides at the same time.
Alarm reminders can be synchronized to the watch, it is necessary to ensure that the Bluetooth connection between the phone and the watch is normal, and that the Mi Fitness App keeps running normally.
Note:
You can tap on [App] >> [Device] >> [Alarm Clock] to turn off the alarm clock reminder for your cell phone.