I’ve never seen that before.

To fix the “red snake of death”, you can try these steps: Press and hold the crown and power button simultaneously for 10 to 30 seconds Keep holding it until it goes completely black and then the Apple logo reappears Let go of the button If that doesn’t work, you can wait until your Apple Watch completely dies or runs out of charge.

No step on snek 🐍

This is definitely on Google.

For me, it has preceded the need for a new watch.