Relatively weak magnets in consumer products have always posed some risk, usually very low, to the function of pacemakers and implantable cardioverter-defibrillators (ICDs). However, stronger ...

The worldwide use of both magnetic resonance imaging (MRI ... MRI can be safely performed in patients with selected implantable pacemakers, MRI in pacemaker patients is still contraindicated.

"Under certain conditions, magnets and electromagnetic fields might interfere with medical devices," Apple wrote. For example, it noted, "implanted pacemakers and defibrillators might contain ...

A lithium-ion battery made from three droplets of hydrogel is the smallest soft battery of its kind – and it could be used in biocompatible and biodegradable implants ...

may pose a risk to those with medical devices such as implanted pacemakers and defibrillators, as the sensors in those devices may respond to magnets and radios in the accessories or the phones.