A:AnswerThat's weird. Try to remove the pairing and then re-pair them again in your watch. Remember that the Apple chip will try to connect to the device you are actually using, meaning that if you are using your iPhone, they will hook up there, rather than your Apple Watch
A:AnswerThat depends on the phone and OS revision, not the headphones. Certain phones and OS' can do this through audio sharing. I think that's iPhone 8 and newer and Android Pie and newer, but do your homework on that before buying.