Yet another video of iPhone 5 parts has appeared, this one giving a clear comparison of the size of the new iPhone compared to the iPhone 4S. As with all the other leaks, this video shows that the new iPhone will have a 4-inch display. The video also covers some changes in internal parts, which suggest that Apple made changes to accommodate a larger battery to power the 4-inch display. Rumors are still suggesting that the new display will use in-cell technology that will make it thinner and sharper. But DigiTimes reported yesterday that suppliers are having trouble producing enough defect-free displays to meet demand, and that supplies of the new phone will likely be constrained for a while.