I just got the jaybird Vista 2s and I really enjoy most aspects of them. However I am still having the same connection issues that plague other wireless headphones with the master headphone on the right ear with the Fenix 5s on the left wrist. I guess I assumed this wasn't going to be an issue because you can wear either headphone individually, but when they are both connected, it appears the right is still the master and left is slave connection. To verify this I switched my 5s to my right wrist and had zero static issues. On my left it was mostly ok, but enough to be annoying. If I brought my left wrist down to my side static every time.
The hopeful news is that since either headphone can be used individually, this might be correctable with future firmware updates but I'm not going to hold my breath for anytime soon as this is a new product launch and the Fenix 5s probably isn't high on jaybirds priority list.
Just putting this out there in case anybody has a similar situation.
Other than my watch connection, I've had zero issues with my phone connection and I'm really enjoying the ANC and soundsense modes! They are definitely built well and have similar fit to the jaybird tarah.
Patrick