1️⃣ Check Connection & Airplane Mode
First, make sure your ring is connected to the app:
If Airplane Mode on your phone **or **your ring is turned on, your ring won’t sync.
- Open the Circular app and look at your Sleep and Energy Circles. If they are grayed out, you are likely in Airplane Mode.
To turn off Airplane Mode of your ring:
- Tap the Airplane Mode icon in the quick-access bar at the top of your homepage.
- You can also find it under the Quick Access menu (☰) in the top-left corner of the app
2️⃣ Syncing Your Data
Once Airplane Mode is disabled, your ring will automatically sync a few seconds after connecting to the app.
- You can also manually trigger a sync by doing a pull-down gesture (swipe down) on your Circular app home screen.
3️⃣ Understanding the Sync Steps
The app follows four steps during synchronization:
- Ring ➜ App – The ring sends data to your phone.
- App ➜ Server – The app uploads your data to the Circular cloud.
- Server ➜ App – Your data is processed and returned to your app.
- Display – Your updated data is visible in the app.
You’ll only see your new metrics after Step 4 is complete.
Do not sync your data while you’re sleeping, as this will interrupt the recording of your sleep data.4️⃣ Do I Need to Leave the App Open?
Nope! 🙌
Once your data has synced and you’ve viewed it, you can safely close or kill the app — the data will remain saved and updated.
Updated on: 24/11/2025