The white iPhone 4 has gone on sale and you stampeded and shoved the elderly out of your way to get your mitts on one.

And now that you’ve got it, you should know what’s inside.

Per Japanese Mac blog MacOtakara,there are a few modest changes to the inside of the device, most notably a modified camera lens and proximity sensor.

“According to the report, which drew its information from various Twitter posts, the sensor remains the same, but the ‘magnitude of the incident light’ between the black and white iPhone 4 models is a different size,” the article notes. “Photo comparisons of the two devices seem to indicate that the rear-facing camera lens on the white iPhone 4 has been set farther back than its black counterpart.”

Apple’s own promotional images of the white iPhone 4 reveal that the outer hole for the proximity sensor is larger than on the black model. It’s been speculated that both changes were necessary to avoid light leakage, which is widely believed to be the major issue that delayed the white iPhone 4 for nearly 10 months and drove iPhone owners just a bit nuts in the process.