"Follow these steps for a good Bluetooth calling experience:
Android device:
• To mute an incoming call on the watch and phone, press the side button of the watch.
• To end a dialled call on the watch, press the side button of the watch.
Note: You will also return to the previous level.
• To exit an incoming call from the watch and answer it via your phone, press the side button of the watch.
"
"iOS device:
1. When there is an incoming call, press the side button of the watch, no response <remove this>
• To hang up a watch dialled number, press the side button of the watch.
Note: You’ll also return to the previous level in the watch.
• To exit an incoming call from the watch and answer it via your phone, press the side button of the watch.