When should I use my primary device versus additional devices?
You'll want to set your primary device for the device that you wear all time which captures your routine activity. Only activity from your primary device will be used in your activity dashboard from the time you made it primary forward. It will not retroactively add activity data.
All additional devices will be used to capture your fitness events which are displayed in a box in your dashboard and are indicated with a navy blue activity bar.
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