Q: Passage: Most reviewers recommended the iPhone 5S over the iPhone 5C which was released at the same time. The 5C retained almost the same hardware as the discontinued iPhone 5, while the iPhone 5S featured substantially improved performance / features thanks to its new 64-bit A7 processor, as well as extra storage space, all for a relatively small additional upfront cost over the iPhone 5C (US $650 versus US $550 in March 2014). This was especially the case when iOS 8 was released and both iPhone 5S and iPhone 5C were moved to the mid and low end of the iPhone range, respectively; the iPhone 5S still had 16 or 32 GB storage available while the iPhone 5C had to make do with 8 GB storage with only 4.9 GB available to the user after installing iOS 8. Furthermore, the 5C's polycarbonate exterior received a mixed reception and was seen as a cost-cutting downgrade compared to the iPhone 5's aluminum / glass case; the 5S retained the latter design and looked even more premium due its additional gold finish.

Question: Based on this passage, iphone 5s price when it first came out?
Let's give stream of consciousness below
This is the relevant information: The 5C retained almost the same hardware as the discontinued iPhone 5, while the iPhone 5S featured substantially improved performance / features thanks to its new 64-bit A7 processor, as well as extra storage space, all for a relatively small additional upfront cost over the iPhone 5C (US $650 versus US $550 in March 2014). So the answer is US $650.