1. The following functions do not require constant connection to your phone: step counting, sleep monitoring, alarm clock, heart rate, blood oxygen, stress level, menstrual cycle tracking, and exercise monitoring. Data on the watch will be automatically retained for seven days. To ensure data is not lost, please connect to the app periodically and sync your data. 2. The following functions require constant connection to your phone: calls, call reminders, music control, music playback, using your phone's GPS for exercise monitoring, voice assistant, weather forecast, find my phone, find my watch, change watch faces, and SMS notifications.