I picked up a Microsoft band to try out while I'm waiting on my Apple Watch to ship. Went to the gym and couldn't pair my Plantronics backbeat Bluetooth headphones, they wouldn't even show up in the list. My Band was already paired. Did a little searching and it sounds like only one item like this can be paired to the iPhone! Once I have the watch I'll be able to pair my headphones to the watch and listen to Spotify and still use the watches fitness features while at the gym correct?