The “ghost touch” bug, fixed in watchOS 10.4 last month
https://www.tomsguide.com/wellness/smartwatches/apple-watch-...
Happened to me. Force power off fixed it. I think it got dirty and wet from mud.
My Ultra 2 did this a few days ago, startling me.
I didn’t see any speculation in that thread as to why it happened. Any HN theories?
The first thing I though of was the "touch disease" on the iPhone 6.
> …called 911. I had to explain to the operator that my watch was going crazy and had called spontaneously. She seemed unfazed by this, so i'm assuming this is a common occurrence
Remaining unfazed is part of the job of a 911 dispatcher. If you stop and think for a minute or two about the kinds of calls a 911 dispatcher receives and deals with on a regular basis, you wouldn’t expect one to get fazed by something as petty as a malfunctioning smartwatch even if it was their first time.