The steps to take an Apple Watch screenshot are a bit hidden, but once you know what to do, you can view your screenshots right on your iPhone. This article explains how to enable this feature from the Apple Watch app on your iPhone and take screenshots on your Watch.
All Apple Watches: How to take a screenshot?
Make sure this feature is enabled to be able to take screenshots with your Apple Watch.
Open the Watch app on your iPhone.
Tap the slider to enable screenshots (located at the bottom of these settings).
