The ECG feature on my HUAWEI watch can't be activated or used for measurements/My HUAWEI watch's ECG measurements are inaccurate

Measurement precautions

1. The ECG feature is not recommended for users under the age of 18, as their bodies are still developing. It is also not suitable for those with pacemakers, as their ECG readings may vary, or those with other implantable devices.
2. Avoid using the ECG feature in environments with a strong electromagnetic field.
3. The ECG feature isn't capable of detecting heart attacks and related complications. Please seek timely medical assistance if you feel pain, tightness, or pressure in your chest, or experience any other symptoms.

Cleaning your watch and making sure that it is free from dirt

Use an alcohol wipe to clean the electrodes on the side and bottom of the watch with force. Then, either use tissues to wipe it dry or leave it to dry until there are no obvious water stains. You can then start the ECG measurement.

Note: When cleaning the Down button (electrode), press it firmly until it secures. This method of cleaning won't cause any issues with the device.

Instructions for correct measurements

1. Wearing mode
   • Make sure that you are wearing your watch correctly. During ECG measurements, make sure that the bottom electrode on your watch is in contact with your wrist, and that the side electrode is in contact with a finger on your other hand. Check if the gap between the side electrode and the watch frame is clean. Regularly clean the area with alcohol as instructed in Cleaning your watch and making sure that it is free from dirt. Wait until it is dry before taking an ECG measurement.

   • Make sure that the watch is being worn correctly, with the watch screen facing upward, and positioned slightly above your wrist bone. Make sure that your watch is securely fastened, with the strap sufficiently tightened, so that you get accurate ECG measurements.

     

   • Make sure that the watch is worn on the arm set in the wearing mode. You can change the wearing mode in the watch's ECG app (by going to ECG > Settings > Wearing mode).

     

2. Correct posture during measurements

   Place your arm flat on a table and keep sitting.

   

3. During measurement

   During measurements, relax your arm, and gently touch the electrode on the side of the watch frame. Do not use a lot of force to squeeze the electrode. Breathe evenly and try to avoid speaking.

   If an individual measurement fails, keep your finger steady and gently touch the electrode on the side of the watch frame for at least 5 seconds to start a new the measurement.

Taking the effect of certain body features into account

• Hair, tattoos, or scars on your arm can affect measurement accuracy, or prevent successful measurements entirely. It is recommended that you wear your watch on the arm that has fewer such features.
• Dirt on the finger can lead to measurement failure or unstable ECG signals. It is recommended that you clean your finger with clean water.
• Dry skin may affect the accuracy of measurements. It is recommended that you clean your fingers with alcohol or take the measurement after a shower to enhance conductivity.

Interpreting ECG results

• Generally, arrhythmia events occur sporadically. There is a chance that none occur during the measurement, resulting in a "sinus rhythm" or "no abnormalities" reading.
• If the ECG result is inconclusive, follow the onscreen instructions.
  • If there is no heart rate data displayed on your watch's diagnosis screen

    The signal quality is poor. Keep still and keep your finger moist. Avoid speaking or moving your finger. Repeat the measurement.

  • If the heart rate data displayed on your watch's diagnosis screen is greater than 110 beats/min

    ECG analysis is affected when your heart rate is too high. If you have just completed a workout, take a 30-minute break before measuring your heart rate. If you repeatedly get this result or feel uncomfortable, please seek timely medical assistance.

  • If the heart rate data displayed on your watch's diagnosis screen is lower than 50 beats/min

    ECG analysis is affected when your heart rate is too low. If you repeatedly get this result or feel uncomfortable, please seek timely medical assistance.

  • If the heart rate data displayed on your watch's diagnosis screen is greater than 50 beats/min and less than 110 beats/min

    No accurate analysis result is displayed. ECG results are for reference only. If you repeatedly get this result and feel uncomfortable, please seek timely medical assistance.

If the issue persists

If the issue persists or you encounter any difficulties, please contact the Huawei customer service hotline or take your device and proof of purchase to an authorized Huawei Customer Service Center for assistance. We will do our best to address your needs.