Tips to Solve Poor ECG Signal
If you’re getting a poor ECG signal when using the Circular Ring — here are some simple tips to help you improve the quality of your reading:
Movement or muscle tension can cause interference.
👉 Find a quiet place to sit down, relax your arm on your thighs, and stay still during the 40-second recording.
Make sure the ring fits snugly on your finger — not too loose, not too tight — to maintain steady skin contact.
Follow the app’s guide:
👉 Use the opposite hand and gently touch the ring’s contact point with your fingertip to complete the electrical circuit. Avoid pressing too hard.
Make sure to indicate to the app which ring you're wearing the ring in the menu My Ring > Wear the ring on my. This will ensure that the ECG signal is not inverted.
Dirt, sweat, or lotions can affect signal quality.
👉 Wipe the ring’s sensors with a soft cloth before use to ensure they are clean and dry.
Cold hands reduce blood flow and electrical conductivity.
👉 If your hands are cold, rub them together for a minute or two to warm up before starting the ECG.
Stay away from electronic devices that could cause interference during the test.
For the most accurate ECG readings, make sure to perform your measurement within the recommended working temperature range of 0°C to 37°C (32°F to 98.6°F).
👉 Below 0°C: Blood flow reduces, skin conductivity drops, and signal quality weakens. Above 37°C: Sweat and heat may interfere with sensor contact and signal stability.
If you’ve tried these tips and still experience poor signal quality, please reach out to Circular Support — we’re here to help!
✅ 1. Sit Down and Stay Still
Movement or muscle tension can cause interference.
👉 Find a quiet place to sit down, relax your arm on your thighs, and stay still during the 40-second recording.
✅ 2. Ensure Good Skin Contact
Make sure the ring fits snugly on your finger — not too loose, not too tight — to maintain steady skin contact.
✅ 3. Use the Correct Hand Position
Follow the app’s guide:
👉 Use the opposite hand and gently touch the ring’s contact point with your fingertip to complete the electrical circuit. Avoid pressing too hard.
Make sure to indicate to the app which ring you're wearing the ring in the menu My Ring > Wear the ring on my. This will ensure that the ECG signal is not inverted.
✅ 4. Clean the Sensors
Dirt, sweat, or lotions can affect signal quality.
👉 Wipe the ring’s sensors with a soft cloth before use to ensure they are clean and dry.
✅ 5. Warm Up Your Hands
Cold hands reduce blood flow and electrical conductivity.
👉 If your hands are cold, rub them together for a minute or two to warm up before starting the ECG.
✅ 6. Avoid Electronic Interference
Stay away from electronic devices that could cause interference during the test.
✅ 7. Optimal Temperature
For the most accurate ECG readings, make sure to perform your measurement within the recommended working temperature range of 0°C to 37°C (32°F to 98.6°F).
👉 Below 0°C: Blood flow reduces, skin conductivity drops, and signal quality weakens. Above 37°C: Sweat and heat may interfere with sensor contact and signal stability.
💡 Still Having Issues?
If you’ve tried these tips and still experience poor signal quality, please reach out to Circular Support — we’re here to help!
Updated on: 26/03/2025
Thank you!