A:AnswerYes. I am using them with the Versa now. Can sync these to more than one device. I have them paired to my iPhone and my Versa, I toggle back and forth as needed.
A:AnswerYes, these will work with an iPhone. Some users report that they will pair with only the Fitbit Ionic and Versa, but not the Charge or Charge 2.
A:AnswerThey should work with an Apple Watch. They connect using Bluetooth, so they should connect to any device with Bluetooth. They work perfectly with my iPhone 8.
A:AnswerBose sucks, not familiar with Jaybird, but from what I've read, they good. I think Fitbit lands in between, where Bose falls waaaaay below. With their price drop, totally worth giving them a try.
