Do we know for sure the 5s is more profitable? The Touch ID and better spec presumably costs more to make.
Not $100 more. Not by any stretch. Remember, despite the unit sales "miss" (about 4 million units), revenue and EPS were at and above consensus, respectively. Margin was above consensus, as well. Given that 52% of Apple's profit came from iPhone, that suggests that the 5s is significantly more profitable than the 5c. The only exception would be the 32GB 5c compared to the 16GB 5s. They sell for the same, while the 5c has a lower cost of materials.