The charging cable works with F5/F5X/F5S and the FR935 at the moment. Not sure on the bands, it might be the first one, unless other V series use them, I don’t think any Forerunners or Fenix brand do.
I think the same cable is also used on the Approach S60, and the band may also be compatible. There are also many 3rd party bands that work, It's 20mm with quick release pins, which is also used on other fitness devices. I picked up a couple on Amazon for about $10US each.
Any 20mm watch band will work, the quick release pins just make it easier to swap between them. I've got 2 nylon bands with quick release and one leather from and old Timex that has regular spring pins and I swap then around with the original strap quite a lot. The regular spring pins are a little more trouble but not a lot.
