What to do if the Xiaomi Watch S4 does not receive incoming call notifications?

If the Xiaomi Watch S4 is not receiving incoming call notifications, follow these steps to troubleshoot:
1. First, ensure that the Mi Fitness APP is running in the background on your phone. Check that the necessary permissions are granted, including background process lock, auto-start, and high battery consumption settings, as these can interfere with notifications;
2. In your phone's Bluetooth settings, verify that Bluetooth audio is enabled for the connected watch. This feature is enabled by default. However, if it is turned off, incoming call notifications will not be received;
3. Additionally, ensure that both your watch and phone have sufficient battery levels to maintain the connection and notification functionality.