The Calendar app play a major role in my daily life. Be it checking for upcoming events, meetings, etc., it does it all.

Recently, I’ve been trying to figure out why the Calendar app on my iPhone refused to sync with the Apple Watch. There aren’t much I like to do on this tiny device, but this is one of them.

Whatever updates I made on the iPhone won’t get on the watch until a few hours later.

If you’re experiencing any of these issues:

  • Calendars won’t sync at all
  • Lag to update new events

I’ll have some easy-to-follow steps down below for you.

Restart your Apple Watch

There is a method that I follow every time something goes wrong my the watch. That’s to restart it.

  1. Press and hold the side button
  2. Drag the Power Off slider to the right
  3. Once the watch is off, press and hold the side button again until you see the Apple logo


Furthermore, some people prefer updating to the latest watchOS and iPhone firmware. This fixes bugs that exist in the previous version.

Calendar stopped syncing

  1. Go into your Calendar app
  2. Reduce the number of Calendars from your account (If I have about 30 Calendars setup on one of my Google email account then I will reduce the number to 5)
  3. Now restart your Apple Watch by following the instructions above

The main takeaway from this problem is that too many Calendars loading at once will force the app to stop responding; Therefore, you can only select a few at the same time.


If the tricks work, you should start to seeing Calendars on your Apple Watch again. This process might take some time depending on how busy you are in the upcoming days.

Let us know in the comment section below if you continue to have problems syncing this kind of apps.

  • Lacey

    Areitlcs like this just make me want to visit your website even more.

  • Dave

    Didin’t work for me–tried everything