Why isn’t the Cardiogram complication updating on my Apple Watch?

The Cardiogram complication should update regularly on your Apple Watch, but a few factors can affect how often it refreshes. Here’s how it works and what to do if it’s not updating as expected.

🔁 How often does it update?

Every 15–30 minutes by default
Every 5 minutes if the Cardiogram app is running in the background on your iPhone

These refresh intervals follow Apple’s limits on how frequently third-party complications can update.

🛠 What to do if it stops updating

If the complication isn’t updating or appears stuck:

1. Restart your Apple Watch

To restart:

Press and hold the side button (not the Digital Crown)
Slide the Power Off slider
Once it’s off, press and hold the side button again to turn it back on

This often resolves update issues for complications.

2. Update your watchOS version

Cardiogram requires watchOS 6.2 or later. To update:

Open the Watch app on your iPhone
Go to General > Software Update
Follow the steps to update if a newer version is available

How to update your Apple Watch (Apple Support)

⚠️ Watch face compatibility

Not all Apple Watch faces update complications consistently. If you're having trouble:

Try switching to a supported face like Modular, Infograph, or Utility
These faces are more reliable for showing third-party complication data

Still not working?

Email us at [email protected] and we’ll help troubleshoot.