ICD patient and avid cell phone user here. They tell us magnets will disable the device. This is by design, they include a hall effect sensor to allow medical p

ICD patient and avid cell phone user here. They tell us magnets will disable the device. This is by design, they include a hall effect sensor to allow medical personnel to disable the devices. They aren't exactly specific about how big a magnet and how close it has to be. My device sends data to a base station which reports back and is also interrogated every 6 months by a electrophysiologist and they can see if and when it has been disabled. Mine has been disabled twice so far, once by using the Boston Scientific interrogation device to turn it off, and once by a surgeon taping a magnet to my chest!