Until the OP proves they are in possession of these phones.... consider this SCAM CENTRAL!!!

Add a picture of your brand new iphones for sale with a sheet of paper that has BOTH your username and the most recent block height written on it.

If the OP adds the picture/pictures then I'd use a trusted escrow..... until then, you're considered a scam.

Also, be wary of the fact that if they were stolen or purchased with a stolen credit card and the police were given the serial numbers, expect a knock on the door at some point from the boys in blue.

Too good to be true usually mean too good to be true.