Custom Tiles Support
Don’t Know What A Tile Is? On Galaxy Watch 4, the widgets are known as tiles. A tile on the Galaxy Watch 4 is extremely useful as it offers tons of functionality.
When you first set up your Galaxy Watch, they aren’t set up in a way that is most useful for you. So you’ll need to edit it.

Long pressing on any tile will show an option to edit. Tapping on edit, allows you to edit that particular tile based on your preference. If you want to add new tiles, scroll to the end and tap on add tile option. Then, select one of the available tiles.