The Iphone glass has been known to shatter just because you were carrying it in a linty-lined pocket and a some small particle got between the glass and the phone.
It’s pretty exasperating. But it was given to me, it costs me nothing, and I love the thing. It’s wonderful to have the Internet and so much knowledge in my pocket. It’s a perpetual source of learning and pleasure via the books, videos, and music. The power and scope of the thing is fantastic.