I'm sad to say that while I love the i5's bigger screen, LTE and other enhancements - I much prefer the 4/4s's durability. I had my 4 for 2 years - w/ just a bumper - and no screen protector. I used and treated it exactly the same way I use my i5. After three months with the 5 - I'm sad to report several scratches on the screen. Admittedly they are very minor (really only noticeable in certain light) - but my 4 had none. The 5's screen is clearly softer than the 4's. I somehow got a dent on the back a few weeks ago. l apparently placed it on the corner of something with a sharp edge. And then, on Christmas day I jumped into my car to move it quickly for someone. I had my phone in my back pocket. I bending the whole phone slightly. I was able to bend it back enough to get the volume buttons un-stuck - so functionally its still usable but I now have a 3cm crease on the back. Normally I'd swap it out for a refurb - but I'm sure there will be more instances before I upgrade again. I'm very glad I got Applecare+ for this phone. I got it on a whim (never got it with the 3's or 4's). The hyper thinness, longer shape and thinner screen and metal back all have contributed to a much less durable phone. I realize the i4 had a glass back that could crack but thus far I think it was a much stronger material. My which for the 5S/6 is a thicker and stronger outer frame with a something like carbon fiber for the back.