- Tankovska H.
- •Magnets used in the wristbands of fitness trackers and smart watches can interfere with implanted cardiac devices; however, this is not widely appreciated by manufacturers of the watches or the cardiac devices.
- •Possible complications include implanted cardioverter-defibrillator deactivation and permanent pacemaker mode switch.
- •Patients should be counseled on this risk and advised to keep their wristbands at least 6 inches away from their cardiac devices, and not to wear them to sleep.
Methods and materials
|Magnet type||Distance at which ICD deactivates (cm)|
|Apple Watch wristband||2.0|
Apple Watch: User Guide. 2020..
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Funding Sources: The authors have no funding sources to disclose.
Conflicts of Interest: The authors have no conflicts to disclose.
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