Just be careful about the case one gets for the new iPhone 5s..
"With the iPhone 5s, the Touch ID fingerprint sensor embedded in the device's home button appears to be the biggest change case manufacturers have to compensate for compared to last year's model. As seen in the drawings, the "keepout" area surrounding the button is slightly larger than the iPhone 5c, likely due to the steel ring that encircles the physical input as part of Touch ID's capacitive sensor technology.
As with the iPhone 5, the document notes that no metal should come in contact with the iPhone 5s' chassis. Doing so would cause unwanted attenuation with the integrated antennas, resulting in signal degradation".
http://appleinsider.com/articles/13...ners-offer-peek-at-iphone-5s-and-5c-internals
"With the iPhone 5s, the Touch ID fingerprint sensor embedded in the device's home button appears to be the biggest change case manufacturers have to compensate for compared to last year's model. As seen in the drawings, the "keepout" area surrounding the button is slightly larger than the iPhone 5c, likely due to the steel ring that encircles the physical input as part of Touch ID's capacitive sensor technology.
As with the iPhone 5, the document notes that no metal should come in contact with the iPhone 5s' chassis. Doing so would cause unwanted attenuation with the integrated antennas, resulting in signal degradation".
http://appleinsider.com/articles/13...ners-offer-peek-at-iphone-5s-and-5c-internals