White iPhone 4 Not Quite The Same As iPhone 4

iPhone 5 News Blog lead columnist Charles Moore reports on the subtle differences between the white iPhone 4 and its original counterpart.
The Japanese site Macotakra’s danbo reports that the white iPhone isn’t quite the exact clone of the black one save for the color change.
Specifically, danbo, based on what he’s gleaned from Twitter posts, says it appears that the white model’s camera lens and proximity sensor are different than the corresponding parts in the black iPhone 4. As he puts it, courtesy of Google Translation, “The sensor is similar, the magnitude of the incident light, in black and white are different in size,” and that from studying photo comparisons of the respective models it seems that the rear-facing camera lens is set farther back on the white iPhone 4 than on the black one.
These differences are probably not in aid of a performance tweak, but more likely have been required to address a stubborn light leakage issue that’s thought to have been the main reason why the white-un’s consumer release was delayed by nearly 10 months after the black model went retail. Even so, I’ve seen reports from white iPhone 4 users that even with the modified proximity sensor, its not as efficient at its job of blanking the screen when the phone is held up to the face as the black model is when screen protectors are fitted.