If you’re looking for something a little different on your Apple Watch face, you can quickly change the watch face to one of Apple’s pre-designed selections. If you’re looking for something a little more personalized, you can use your pictures to create an Apple Watch background that reflects your style.
The easiest way to use your photos as your Apple Watch background is to set up a display of your favorite images. To do that, you'll first need to favorite pictures in the Photos app so they'll show up on your Apple Watch.
Open Photos on your iPhone.