I'm certain the bumper will HELP protect it from drops. I feel much better having a bumper on my phone than naked. And I don't like big bulky cases so this is a good balance for me. But I never expected the bumper to eliminate the danger of damage. That's just life with a gadget. And from all the stories on Macrumors and elsewhere, it's clear that the circumstances of every drop are different, and whether your phone will break or not is a crapshoot really. There are people that dropped a naked iPhone 4 from 5 feet and had little damage. There are others who dropped an iPhone in a bumper 2 feet and got damage. With the bumper on, your odds get better, but that's it. It's just odds. Good luck!