I bought the 5s yesterday going to send in the 5 for a trade in both are on the latest ios system (updated last night) but why is it that the siri on my brand new 5s sounds incredibly robotic? i went to general settings and i made sure i downloaded enhanced quality . so thats not the problem also the two siris say completely different things. for example i asked the iphone 5 as a test "how are you doing today?" and siri( on the 5) replied " i'm fine! thanks for asking! " in a very human like voice i asked the same question to the iphone 5s and siri (on the 5s) replied "i am well." its like this for everything the siri on the 5 goes into much more elaborate detail and sounds much more human like whats going on?