The iPhone 4 for
On the iPhone, there used to be a SIM slot, but Apple has removed it from the iPhone for Verizon. According to Apple, the SIM card and SIM slot were the only user-serviceable parts on the iPhone 4. Apple now says that “iPhone does not contain any user-serviceable parts.” When you uncover the back of the iPhone4, you will notice a couple of differences. The battery is interchangeable and is listed as the same 5.25 watt-hour capacity. The battery does have a new model number, 616-0520, but I doubt that really makes a difference between the iPhone 4’s. The new battery weighs less too, from 26.9 grams to 25.6 grams. The Wi-Fi antenna is exactly the same as the GSM iPhone 4. That may be the only RF component that did not receive a revamp. The chipset is the same as the Droid Pro world phone; it supports both GSM and CDMA. Apple chose not to support GSM because they may have thought that it’s easier to design antennas for a CDMA-only phone. The last thing that may have changed is the iPhone 4’s vibrator. The vibrator has a quieter, softer feel. It also sounds a little better when it vibrates on a table. DO you think that these are big differences between the AT&T and Verizon phone? Let us know, drop a comment below.