New software update bringing ECG to Galaxy Watch 3 in US and Tizen 5.5 to Watch Active 2 - Sammy Fans
ECG and BP working without any need of rooting you GW. Walkthrough (not my video) https://youtu.be/11lvEJWdzMY Both apk works really well with Tizen 5.5 update. You don't need to uninstall Samsung health