Widgets come in multiple sizes:

• A small square covering the space of 4 app icons.
• A rectangle that is 4 app icons wide and 2 icons tall.
• A large square that is 4 app icons wide and tall.

To change the size of a widget that has been placed on your home screen:

1. Tap and hold on the widget.
2. Select the new widget size from the icons at the top of the popup menu.