Any reason not to get Unlocked and SIM-free iPhone?

[Carm]

sekker wrote:
I see no difference in hardware, so I'm thinking the Carrier-free iPhone should include antennae for all four networks?

If so, that's a great reason to get the SIM-free iPhone. Should have the greatest flexibility.

Before some phones were either CDMA or GMA like the iPhone 7. The iPhone 6s had both antenna. The newer phones should have both.