Depends on the carrier. Verizon postpaid is $10 month plus taxes/fees. Others offer it for $10 including taxes/fees. I've seen $5 month also, can't remember who with.What do the telcos charge, $10/mo extra for Watch connection?
Yes, you just attach a credit card to Apple Pay. The actual charge goes on your cc bill, just like any other charge.Does your bank/credit union grant you rewards points for running thru Apple Pay like that?