After the iPhone 5 announcement, one of the early concerns of many people was how well the anodized aluminum back and edges of the black iPhone 5 would hold up over time. Since the material was different than that of the previous iPhones, many consumers were unsure of how they felt about the news. Now that the iPhone 5 has been publicly release, several reviews on the web and customers have noted wear around the edges just after a short amount of early usage. The folks over at Pocket-Lint mentioned the following in their review:
Ditching the glass back and reducing the thickness of the glass panel on the front has affected the design of the metal band around the edge of the iPhone. It is now chamfered and while that looks pretty, we've already noticed that on the black model the edge has started to wear, revealing the shiny silver aluminium metal underneath the "slate" coloured coating and, indeed, we've witnessed it on two separate models, ruling out a fluke manufacturing error.
For those of you who are concerned with such issues, you may want to keep an eye out before you find a few unwanted scuffs on your new iPhone 5 and for those of you who havenít gotten an iPhone 5 yet but plan to, you may want to go case shopping sooner rather than later to keep your device well protected once it's in your hands.
Source: Pocket-Lint, Overclockers (forum)