Soooo I don't mean to be that guy but.....I'm gonna be that guy. I got my iPhone 5S 2 days ago. I probably should have looked around for problems beforehand but..I didn't. I started using my phone, and I set my phone down on the table for the first time to realize that it made a clicky noise. I shook it and it made a noise. I made my first call and my girlfriend said she could hear the noise when I walked around. So I went to my carrier's store and replaced it the very next day, but the new replacement had the same problem - I just said that's fine I guess and acknowledged it must be a problem with all 5s' (store models did it too) and I decided I could live with that if I need to. The problem comes into play when I got home and started fooling around with my (newer) new phone again. Within 3-4 clicks of the home button I knew this one was a lot different than the last one. This one sounded a lot louder when it clicked, and it kinda sounded tackier. I guess I could say it sounded like it was more of a plastic button whereas the model I had the day before sounded more like glass - and was much more subtle. I honestly really don't like how loud it is, and even though one would think it might just be the "new construction" of the home button since it has touch ID this time around - it isn't. The model I had less than 12 hours before this one did not have nearly as obnoxious of a click. Anyway, I'm likely to return it tomorrow and get one without the click. But I wanted to see how many other people notice their home button to click loud enough to the point where it almost sounds cheap, or tacky.