Withings recommends that you do not use BPM Core if you have a pacemaker, defibrillator, or other electrical implants. Withings devices are connected via Bluetooth and/or WiFi. This means that they radiate electromagnetic fields that may interfere with other medical devices. If you have a pacemaker, an insulin pump, or another implantable active medical device, use precautions with connected objects.
Indeed, the American Heart Association (AHA) considers that connected objects present limited risks for the functioning of a pacemaker but recommends trying to keep all motors and antennas at least 15 cm away from the pacemaker or ICD. This precaution is not compatible with a blood pressure monitor worn on the arm.
Please check with your doctor for detailed information before using these items.