About a month after launching the iPhone 7 and iPhone 7 Plus internationally through various contract and carrier-financing options, Apple has begun selling the SIM-free iPhone 7 and iPhone 7 Plus on its US online store.
The SIM-free iPhone works on any carrier in the world, assuming that the iPhone supports the wireless bands of the carrier. You’ll not be tied to any agreement or condition, and can use the device on the carrier of your choice — at full retail price.
Apple on the iPhone 7 network compatibility:
AT&T and T-Mobile
Sprint, Verizon Wireless, and SIM-free
As far as the availability is concerned, the iPhone 7 ships faster than the Plus, though the Jet Black variant has longer shipping time in either size. The iPhone 7 starts at $649, while the iPhone 7 Plus at $769.
More information available here.