Lidl here in Sweden have some health products for sale that is Bluetooth, they manufacture is SilverCrest, the app they use is called HealthForYou.
Now when it’s possible to use Bluetooth integration I wonder if anyone has some integration that works and make it possible to use these SilverCrest HealthForYou (https://www.healthforyou.app/) with Home Assistant?
don’t know whether you are still interested, I bought a HealthForYou Blood Pressure (SBM69) and I managed it to integrate by use of HACS medisana bloodpressure integration… Have a try