Can’t seem to get more storage on my Apple Watch to apply the update. My watch is down to the bare bones. The only thing might be photos, but I don’t see them on the watch. How do I delete downloaded photo of they are on the device?

To confirm your suspicion, open the Watch app on your phone, tap General and then About. It will show you what is consuming storage, the capacity of your watch and the available storage left.

If Photos are consuming much storage, please see this article: Choose a photo album and manage storage on Apple Watch - Apple Support

I'm not sure this will work but you could give it a try:

1. Open the Watch app on your phone
2. Tap Photos
3. Tap Selected Photo Album
4. Tap None (at the top )

I am having the same issue. When I click the photo app there’s no photos. But when I click about I have 16. How do I delete them?