I got this and happy with it. 6ft heavy duty cable
http://www.ebay.com/itm/ventev-Char...Phone_PDA_Cables_Adapters&hash=item25871cde74
Apple certified? Do you get a warning message? If so, may not work on 5S. Some third party cables that produced a warning message on the 5 did not work at all on the 5S.
Try itechi.co.uk we have 7 colours all flat and compatableAnybody know of any good FLAT lightning cables? Im looking for the flatest, thinest cable I can find. Any ideas? Ive been looking around and cant find anything.