one
When the Apple Watch cannot be turned on, the first thing you should check is whether the current watch can not be turned on because it is out of power. If you use the Apple Watch for a long time but do not charge it, it is very likely that it cannot be turned on due to lack of power. At this time, we just need to connect the Apple Watch to the power supply, and it will automatically turn on after charging.
two
Also, check the Apple charging cable for damage. After connecting the Apple Watch to a power source using the charging cable, you'll see a green lightning bolt icon on the screen. Also, if you're using a third-party charging stand, make sure to use the charging cable that came with the Apple Watch box.
three
Like the iPhone, WatchOS on the Apple Watch is available in beta. For those who like to try new things, they may encounter the problem of not being able to boot after upgrading WatchOS beta version.
That this situation must be charged in time, when the power is too low or in a relatively low temperature environment, it is very easy to cause not to turn on.