Notice About Device Interference for Patients with ICDs and Pacemakers

Updated February 5, 2021

The Michigan Medicine Cardiac Arrhythmia Service wants to make you aware of new information released about several types of devices that contain magnets and radio elements that release electromagnetic fields. When placed in close contact to your body, they may interfere with your implantable cardioverter defibrillator (ICD) or pacemaker.

  • The Apple iPhone 12 models contain a circular set of magnets as well as radio elements.
  • The MagSafe and MagSafe Duo Wireless Chargers for Apple iPhone 12 models have radio elements.
  • CPAP masks with magnetic clips used to secure the headgear.

Questions and Answers About Device Interference