Never use the HS5 scale in combination with certain electronic medical devices, in particular:
- Electronic medical implants including pacemakers.
- Electronic resuscitation systems (artificial heart/lung).
- Portable electronic medical devices (electrocardiograph).
The HS5 scale could cause these devices to malfunction and cause a serious risk to the health of their users.
*credit to Sylvain of iHealth Labs EU
https://helpcenter.ihealthlabs.eu/hc/en-gb/articles/115004008809-iHealth-HS5-Contraindications