What is the Difference Between the AT&T iPhone 4 and the Verizon iPhone 4?

The AT&T iPhone 4 and Verizon iPhone 4 have some differences in terms of technology, features, and external design. Here are the main differences between the two models:

1. Technology: The AT&T iPhone 4 is a GSM model, while the Verizon iPhone 4 is a CDMA model. This means that the AT&T iPhone 4 can support simultaneous data and voice over 3G, unlike the Verizon iPhone 4.
2. External Differences: Due to the differences between CDMA and GSM, the antenna notches have been moved around on the Verizon iPhone 4 compared to the AT&T iPhone 4. Additionally, the Verizon iPhone 4 has four antenna notches instead of three, which has resulted in the mute switch being slightly lower on the Verizon model than the AT&T model.
3. Mobile Hotspot: The Verizon iPhone 4 has a "Personal Hotspot" feature that allows it to share its data connection with up to five Wi-Fi-enabled devices. In contrast, the AT&T iPhone 4 supports tethering through USB or Bluetooth only, and only to one device at a time.

Please note that these differences are based on the original iPhone 4 models, and newer models may have different features and specifications.

Comparative Table: the AT&T iPhone 4 vs the Verizon iPhone 4

Here is a table comparing the differences between the AT&T iPhone 4 and the Verizon iPhone 4:

The main differences between the AT&T and Verizon iPhone 4 models are related to the carriers they work on, antenna notches, and data sharing features. The AT&T iPhone 4 supports simultaneous data and voice over 3G, while the Verizon iPhone 4 does not support this feature on its CDMA network. Additionally, the Verizon iPhone 4 has a Personal Hotspot feature that allows sharing the data connection with up to 5 devices, whereas the AT&T iPhone 4 supports tethering through USB or Bluetooth only, and to a single device.