Apple Watch Keeps Pausing During Workouts

You are most likely pushing in the crown and side button while flexing your wrists.

I know that I do while working out.

Try reversing your watch and wearing the crown towards your elbow instead of towards your wrist.

See Switch wrists or Digital Crown orientation

Hello BadLt! Thank you for participating in the Apple Support Communities.

We understand that your Fitness+ workouts keep pausing, and you've tried resolving the issue through tightening the Apple Watch on your wrist, as suggested through a prompt.

We'd like to look into this with you to see how we can help. First, we want to make sure that you're wearing the Apple Watch in a way that's comfortable for you: Wearing your Apple Watch

Do you experience any issues with your Apple Watch locking unexpectedly? Or not getting accurate measurements? If so, the following article can help determine what may be causing that to occur - and the same issue may be affecting Fitness+: Get the most accurate measurements using your Apple Watch

If your Apple Watch and iPhone are up-to-date, and no adjustments need to be made based on the previous articles provided, your next best bet would be to connect with Apple Support to look into this further: Get Support

Make it a great day!