iOS 14 Widget Sizes

Create your own widget stacks

1. Touch and hold an app or empty area on the Home Screen or Today View until the apps jiggle.
2. Drag a widget on top of another widget. You can stack up to 10 widgets.
3. Tap Done.

Edit a widget stack

1. Touch and hold the widget stack.
2. Tap Edit Stack. From here, you can reorder the widgets in the stack by dragging the grid icon . You can also turn on Smart Rotate if you want iOS to show you relevant widgets throughout the day. Or swipe left over a widget to delete it.
3. Tap  when you're done.

IamChiron wrote:

Anyone else wish that Apple had included an Extra Large Size for the Widgets. I’m seriously liking the Smart Stack as I only use a couple of apps during the day. It’d be nice to have them all in a Smart Stack and accessible with a just a thumbs up or down.

https://discussions.apple.com/content/attachment/38c2bc2a-afc5-476d-9d1f-5eebdd2b1a2c

This comment is why I answered the way I did. You can create your own stack that is perfectly suited to your needs.

Let Apple know you'd like to see a larger widget here:

Product Feedback - Apple