Hi, I’m looking for support with my new Apple Watch Ultra 4. It has unexpectedly crashed and restarted twice on consecutive days.
The first restart happened on 20 September while I was recording a swimming workout. The second happened on 21 September while I had a timer running during my lunch break. In both cases, the Watch rebooted and then recovered the active workout/timer as though it had continued running.
I checked the Analytics Logs and both incidents generated panic-full logs. Both contain essentially the same panic:
ANE0: ANEHWDevice::ANE Timeout
channel=DataChainingCommand
cmd=0x020C
waited=2019 ms, timeout=2000 ms
The Watch is running the latest available software, watchOS 27.0 (24R364).
The two panic logs are:
- panic-full-2026-09-20-121346.000.ips
- panic-full-2026-09-21-125924.0002.ips
As the Watch is new and the same kernel panic has occurred twice during unrelated activities, could you please advise whether diagnostics can be run to determine whether this is a watchOS/firmware issue or a hardware problem with my Watch?
I haven’t erased or unpaired the Watch, so the diagnostic logs are still available if required.
