rots - Sorry, I usually agree with you, but not here.
If they catch you bringing in an iphone they will charge you. Even if it is only one. Obviously we are not referring to one that is on your belt.It is considered tax invasion. And it is a crime.
My brother brought in to israel a few CCTV Cameras, a DVR, and 2 monitors all valued under $750. For himself. His luck they pulled him over and gave him a rough time. They made him pay a knas and high taxes. The same can happen with an iphone.