How to Take a Screenshot on watchOS

What about watchOS on the Apple Watch? It's just as simple, but first you must enable the option—screenshots are turned off by default in watchOS 4. On your iPhone or iPad, launch the Watch app, go into Settings and turn "Enable Screenshots" to On.

Now, back to the Apple Watch itself. Pull up the screen you want to capture. Hold the Side Button and click the Digital Crown(or try to click them simultaneously; it takes some timing to get it right). Like on iPhone, the screen will "flash" white and the camera shutter will go off; the image will appear on your iPhone Camera Roll—don't look on the watch itself.

By the way, that particular key-pairing is also now how watchOS helps you pause/resume workouts that the watch measures. So, whenever you work out, you may be taking a couple of extra screenshots (or more) if enabled.