Q: iwatch 2 activity face

Hi

It may help to restart either just your watch (try this first) or both your iPhone and your watch:

• If restarting both, turn both off together, then restart your iPhone first.
• Restart your iPhone, iPad, or iPod touch - Apple Support
• Restart your Apple Watch - Apple Support

If the issue persists, next try unpairing and re-pairing your watch:

• The Watch app on your iPhone takes a backup of your watch when unpairing via the app. Choose to Restore from Backup when offered the option during set up. Most data and settings will be restored, with some exceptions (eg Apple Pay cards, passcode).
• Unpair your Apple Watch and iPhone - Apple Support
• Set up your Apple Watch - Apple Support

You're welcome!