Xfinity Mobile, a free cellular carrier service for Xfinity internet customers, has added the Samsung Galaxy S9, S9 Plus, S8, S8 Plus, Note 9 and Note 8 to its Bring Your Own Device program -- the ...

Xfinity Mobile is unique in that it offers customers an option to pay $12/GB without any extra device line fees (as long as you have another Xfinity service).