Some Apple Watch users are reporting unexpected reboots possibly caused by ICU equipment
Apple Watch is an excellent health and fitness tracker that can actually save lives, but something about the latest model may be causing issues for users who work in certain hospital environments. A number of Apple Watch users including a 9to5Mac reader report unexpected reboots on Apple Watch Series 3.
The common thread appears to be using the Apple Watch in the intensive care unit of some hospitals. This suggests there may be specific ICU-related equipment used in hospitals that could be interfering with Apple Watch Series 3 with or without cellular.