1. Notifications for Incoming calls, SMS, music control, App notifications, all require keeping the Bluetooth of the mobile device in the “on” state for the watch and the mobile device to remain connected for notification display.
2. Step counting/heart rate detection/Clock/Alarm and idle alerts do not require keeping the Bluetooth of the mobile device in the “on” state. After the watch is successfully bound and connected to your mobile device, you may wear the watch without keeping the Bluetooth in the “on” state. After use, you can connect the watch to the mobile device to synchronous and view the data.