I love this phone and I hope samsung keeps updating it. Yes it seems fragile but...I had the liquid hammer added on the screen with a simple clear military grade back cover. I have dropped this phone more than any other I've had. The only time the screen shattered was while fishing in the mountains and it hit a pointed rock. Yes, I was bummed but highly impressed with the durability, though fragile looking, of the device and the liquid screen protector along with the back case.
I use a film protector from Gadgetshieldz and a Spigen case on my phone and never had a single damage after dropping it like 10 times! I love the built quality and the screen guard and case give complete protection!