watchOS 3 is touted to be a major update thanks to a number of defining features such as all-new UI, excellent Dock and more. Both in terms of functionality and quality features, the latest watchOS version is far better than its predecessor.
With watchOS 3, you need to enable the screenshot as it's turned off by default. Another interesting thing about watchOS 3 is that it uses the screenshot shortcut to pause and resume workouts. As a result, if you are doing your workouts and enable the screenshot on your device, screenshot will be captured whenever you pause or resume the workout. (To take screenshot on iPhone 7/7 Plus, check out this post.)
How to Enable Screenshot in watchOS 3
In order to take a screenshot on your smartwatch, you need to enable it in the setting.
Step #1. Launch Watch app on your iPhone.
Step #2. Make sure My Watch tab is selected at the bottom. Now, tap on General.
Step #3. Scroll down and toggle on the switch next to Enable Screenshot.
How to Take Screenshot in watchOS 3 on Apple Watch
There are two ways you can take a screenshot on your Apple Watch.
The easier way—
Simultaneously press and release the Dock button and Digital Crown of your Apple Watch.
Step #1. Press and hold on the Digital Crown. (Make sure not to activate Siri. I know it's a bit tricky and you have got to do it smartly.)
Step #2. Now, click the side button.
How to Access the Screenshots Taken on Apple Watch
All your screenshots are automatically saved in the Photos app on your Photos album or Camera Roll in case you have not enabled iCloud Photo Library on your iPhone.
Step #1. Launch Photos app on your iPhone.
Step #2. Tap on Albums and then tap on “Screenshots” album.
Do you like customization? You can customize the colors and style of your Apple Watch face and even add some interesting complications to it.