In order to receive a notification as soon as the wearable realizes that you have not been moving for a certain amount of time, e.g. 45 minutes, you have to switch on the Idle Notifications. To do so, follow these instructions:
- Tap “Profile” followed by the gear icon in the top right corner
- Select "Wearables"
- Now, select "Idle Notifications" to toggle notifications on or off
If you activate this feature, you will be able to choose the time frame within which you will receive a gentle vibration from your wearable after being inactive for a certain period.