I have an iPhone app and I want to get heart rate information from a paired Apple Watch in realtime. My question is that do I need the watch version (or interface) of my iPhone app on the watch in order to communicate with the watch and get information in realtime?
Can you please walk me through the steps in order to make this connection and get realtime data from the watch to the iPhone? Do I need to use healthkit or watch connectivity api in order to do this? I am confused at this point.
Thanks.