iPhone 5s Display Issue: color gamut/white balance

Hi everybody,

during a comparison of my new iPhone 5S Model ME440CS/A, iOS 7.0.4 and my old iPhone 5 and with iPhones 5S of my collegues, I came to following results:

iPhone 5S Gold 64GB Cellular+WiFi Model ME440CS/A has different (worst) color gamut. White is not white anymore, chintzi colors/pictures looks normal and normal colors/pictures look dusty/boring. Even the maximum brightness is lower than on other models (5S or 5).

Does enybody have the same problem? I am relly not happy with my new iPhone.

tivi