Among the new features that Apple introduced with watchOS 10 is the reintroduction of app widgets.
Previously widgets were confined to watch faces. However, with watchOS 10 you can add full-fledged widgets of your favorite apps and access them with a swipe. The update’s Smart Stack holds your widgets.
To add or remove a widget, open your Smart Stack either by rotating the crown or sliding from the bottom up, then tap and hold a widget. You’ll get the option to remove individual widgets, and add new ones by tapping on the empty widget with the “+” sign.
Note that you can only have seven widgets in the Smart Stack at once. If you want to add another after you’ve reached that limit, you’ll have to remove one of the old ones. To remove one, tap and hold a widget and press the “-“ icon.
You can also pin one or more of your widgets to the top of your Smart Stack by tapping the yellow pin button in the upper right corner of your widgets. You can also rearrange your pinned widgets by holding and dragging them up or down.