Have you ever wondered what the differences between CDMA and GSM were? Well, now after launching their first CDMA iPhone, Apple has released a handy chart which explains the differences between the two devices.
The main differences between the two iPhones on AT&T and Verizon are that you can only have three people in a conference call on Verizon, including yourself at once. This limitation can be a significant factor for users who frequently rely on conference calls for business or personal use. On the other hand, AT&T’s GSM network allows for up to five participants in a conference call, providing more flexibility for group conversations.
Network Technology Differences
CDMA (Code Division Multiple Access) and GSM (Global System for Mobile Communications) are two different types of network technologies used by mobile carriers. CDMA is primarily used in the United States by carriers like Verizon and Sprint, while GSM is the standard in most other parts of the world and is used by carriers like AT&T and T-Mobile.
One of the key differences between CDMA and GSM is how they handle data and voice services. GSM networks use a SIM card to store user information, which makes it easy to switch devices by simply moving the SIM card to a new phone. CDMA networks, on the other hand, do not use SIM cards (although modern LTE-capable CDMA phones do), and user information is stored on the device itself. This can make switching devices more cumbersome for CDMA users.
Another important distinction is that GSM networks support simultaneous voice and data usage, allowing users to browse the internet while on a call. CDMA networks traditionally do not support this feature, although some modern CDMA networks have found ways to work around this limitation.
You can see the full differences between the two devices in the chart below.
Global Roaming and Coverage
When it comes to global roaming, GSM has a clear advantage. Since GSM is the predominant network technology worldwide, GSM phones are more likely to work in other countries. This makes GSM phones a better choice for international travelers. CDMA phones, however, may have limited functionality outside of the United States unless they are equipped with GSM capabilities as well.
Coverage is another factor to consider. In the United States, Verizon’s CDMA network is known for its extensive coverage, especially in rural areas. AT&T’s GSM network also has broad coverage, but there may be some areas where one network has better reception than the other. It’s always a good idea to check the coverage maps of both carriers to determine which one will provide the best service in your area.
via Gadget Venue
Have a look at our article on the difference between the iPhone 4 and iPhone 4S, and also make sure you check out our iPhone 4S review.
The choice between a CDMA and GSM iPhone largely depends on your specific needs and circumstances. If you frequently travel internationally, a GSM iPhone might be the better option due to its global compatibility. If you prioritize extensive coverage within the United States, a CDMA iPhone from Verizon could be more suitable. Understanding these differences can help you make an informed decision and choose the device that best fits your lifestyle.
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