You can use a cell phone or smartphone but should try to keep a distance of 15-30 cm between the device and the phone. Please note that newer smartphones can bear a strong magnet (e.g. iphone 12+) which can deactivate some ICD functions when held directly above the device.
An induction stove uses a magnet field to generate the heat. You can use an induction stove but should keep a distance of 50 cm between the stove and your device while the stove is on.
At the airport, the security checks can use electromagnetic fields to scan the passengers. You should inform the security guards that you have an implanted cardiac device. They will probably guide you to an alternative security check and perform the check manually. It is recommended to have your implant ID with you as a certificate.
Can be used without further restrictions:
Gardening equipment like electric secateurs or mowers can be used without further restrictions. Please assure that all equipment is adequately grounded.
Many manufacturers of cardiac devices provide more detailed overviews and instructions for patients: