Alarm on iPhone through Apple Watch

I restarted my iPhone to try to fix this. Then I took a look at the Messages settings for my iPhone in the Settings app. It turned out that Messages was logged in to the “old version” of my Apple ID—a couple of months ago I changed the email address of my Apple ID and Messages was still showing the old one. I logged out and back in, using the new email address this time, and now I’m getting iMessage notifications on my watch again.

Since these notifications were working initially, though, I’m guessing that the Apple ID mismatch was a red herring and that restarting was what fixed the problem.

Airplane mode on Apple Watch, by default, mirrors the setting on your iPhone. When you disable Airplane mode on your iPhone, it can not be mirrored to Apple Watch, because the radios on the watch are turned off. You need to disable Airplane mode on Apple Watch manually by using the interface on the Apple Watch.

You can disable the automatic mirroring of Airplane mode the following ways:

iPhone

1. Go to the "Apple Watch" app
2. "My Watch"
3. "General"
4. "Airplane Mode"
5. Make sure the "Mirror iPhone" switch is turned off.

Apple Watch -

1. Go to the "Settings" app
2. "Airplane Mode".
3. Make sure the "Airplane Mode" switch is turned off.