What is the Difference Between iPhone and iPhone 4?

The iPhone 4 and iPhone 4S are similar in many aspects, but they have some differences in terms of performance, capacity, and features. Here are the main differences between the two models:

1. Performance: The iPhone 4S is more powerful, featuring a dual-core Apple A5 processor, compared to the iPhone 4's single-core Apple A4 processor. The iPhone 4S is twice as fast overall and has seven times the graphics performance.
2. Capacity: The iPhone 4S is available in 16 GB, 32 GB, and 64 GB configurations, while the iPhone 4 is available in 16 GB and 32 GB configurations. However, Apple later offered 8 GB configurations for both models.
3. Software Support: Both the iPhone 4 and iPhone 4S are capable of running iOS 5, iOS 6, and iOS 7. The iPhone 4 fully supports iOS 5 but only partially supports iOS 6 and iOS 7, while the iPhone 4S fully supports iOS 5 and iOS 6 and partially supports iOS 7, iOS 8, and iOS 9.
4. External Differences: There are some subtle external differences between the two models. For example, the iPhone 4 (GSM) and iPhone 4S have an access panel on the right side, while the iPhone 4 (CDMA) does not. Additionally, the iPhone 4S has a slightly different antenna break pattern compared to the iPhone 4.

To identify which model you have, you can check the model number on the back of the phone near the bottom. The iPhone 4 has model numbers A1332 (GSM) and A1349 (CDMA), while the iPhone 4S has model numbers A1431 (GSM, China) and A1387 (CDMA, GSM).

Comparative Table: iPhone vs iPhone 4

The search results provided do not contain information about the differences between an iPhone and an iPhone 4. However, based on my existing knowledge, I can provide a comparison between the two devices:

Please note that the latest iPhone model and specifications may vary slightly depending on the release year and model name.