What's the difference between an Apple White iPhone 4 and an after market one?

The main difference is that on the conversion kits, the proximity sensor is three or four rows of dots, as compared to the black bar of the official model. Since they are not genuine Apple, we can also assume a lower quality glass, paint, etc. However, I've seen some new conversion kits on eBay sporting the new proximity sensor so maybe they're switching over. I am probably going to buy an iPhone 4 black used and switch it white soon, I think even the conversions look awesome!

I tried three different conversion kits from three different suppliers before the official white was released. The biggest differences I noticed were:

1. Fit & finish of the parts
They did not fit exactly as the OEM ones do. they are close but you can still see
gaps between the panels and the frame.

2. none of the white kits I tried had the oleophobic coating on the glass.
it was like going back to the original iphone, fingerprints galore. you
dont realize how much that coating does until you dont have it.

3. Quality
the plastic bezels around the panels are of inferior quality and chip and break easily.


these are just my findings with the 3 kits I tried. Now I have an official one and I am much happier.