A:
To my Understanding of the phone, The un-activated version of the phone with that carrier only works with that carrier because of the carrier logo on the back, but if you buy the UNLOCK PHONE then that phone is unlock to all carrier with the use of a SIM CARD.
The un-activated phone cost 749.99 dollars
the unlock phone cost 799.99
to me I think the unlock phone is the better deal but in the end, its up to you to choose which is more suited for you.