In a recently updated support document, Apple revealed a list of products that should be kept a safe distance away from medical devices. The medical devices mentioned in the document are implanted pacemakers and defibrillators that "might contain sensors that respond to magnets and radios when in close contact."
The culprit seems to be magnetic interference created by some devices. Apple, for its part, suggests keeping your medical devices at a safe distance of between 6 to 12 inches away if the Apple product is wirelessly charging. Apple also suggested you consult with your physician and device manufacturers for specific guidelines.
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