Hey no problem, my father in law is wearing a galaxy watch 4 classic paired with a galaxy S7. You need to install Samsung health monitor app, Samsung health app and for good measure galaxy wearable app (don't know if necessary but why not). I specifically bought this for him for fall detection and tracking, hence, all in on Samsung. You will need a blood pressure monitor to calibrate the watch. Add blood pressure monitor to your tiles and it will walk you through the process. It takes about 20 minutes. My FIL is able to use it (he's 87 and not even remotely techie), it also transfers the info to his phone and keeps a record for him to show doctor. The ECG also works (couldn't tell you what it does). Good luck