I also have an iPhone, but be fucked if I can keep hold of it, it's so light I can seem to actually get a grip on it for longer than about two minutes at a time.
I've had my eufges phone for over a year and still haven't broken the screen. I mate dropped his, same brand, different model, from a second story access platform from where it fell face down on concrete, the glass screen protector was cracked but the phone was fine.
I do not understand the obsession with lightness and thinness, but that's just me, and I suppose the other few thousand who've bought phones that aren't ultra light ultra thin ultra breakable.