Apple
The Wall Street Journal calls demand "heavily tilted" toward the more expensive phone which has a fingerprint scanner, an improved camera and a fast processor.
Multiple stores abroad sold out of the iPhone 5S quickly, although Apple reportedly bulked up on 5C inventory and went lighter on the 5S.
Polls of people in line show gold and silver 5Ss are selling out first, leaving the black and slate 5S for last.
One person in Sydney told WSJ that the 5C seemed expensive, and it was just the old iPhone "wrapped in plastic."
A man in Beijing told WSJ he was also after a 5S. "I don't care what's inside the device. Chinese people like gold," he said.