Not sure if this is a stupid question, but can you play music directly from the apple watch (series 1 or 2) without an iPhone nearby/connected? They mentioned in the keynote that the series 2 will have a gps in it so you can run without your iPhone. I would like to run/workout without my iPhone but still have my music with me. So my ideal set up would be have the series 2 and play to wireless headphones. Can you store a few playlists on the watch and play from there?