I have played with my S7 edge roughly 2 days, got it all protected and covered up except the home button. I also have yet to drop the phone or anything. However I realise there are some micro bumps on the home button which I think possibly appearing due to slotting it into the Gear VR. Also there are some tiny tiny air bubbles on the edges of the surface of the home button which is annoying me a little. It seems as though the fingerprint sensor is a plastic film glued on top of the home button.
I also notice that the home button is not seem to be covered with glass and is just purely having a exposed plastic surface which I think would develop scratches after some time.
They have done this with every iteration of the Galaxy. I have had quite a few of them and never had a home button that degraded. And I'm pretty OCD with my tech. That being said, you have a valid point. $800 phone, they should have sapphire home button and camera lense. No excuse.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service