As of my last update, the iPhone 4 is an older model and is generally not sold through major carriers or retailers anymore. If you can find one, prices can vary significantly based on condition and seller, but typically it could range from $50 to $150. If you consider a data plan, costs depend on the carrier and plan selected, usually starting around $30 to $70 per month for basic smartphone data plans.
It is $30
It's part of your data plan.
With 2 year activation at AT&T you can get a 16GB iPhone 4 for $199 or a 32GB iPhone 4 for $299. A data plan is also required, the minimum cost $15/month and gives you 200MB of data per month. You will also need a messaging/calling plan.
$199
Whatever your base ATT plan is plus $30 per month for the data plan, which is required.
probably about 100$ maybe cheaper if you have a phone plan
The iPhone data plan is a requirement and this plan is $15.00/month for the DataPlus 200MB for iPhone or $25.00/month for the DataPro 2GB for iPhone, in addition to your voice plan and other features that you may choose. AT&T frequently runs a sweep of all of its accounts and if it finds an account with an iPhone and the iPhone data plan is not on the account they are adding it, no questions asked. Here is what AT&T says on their web site ... Please note: Data plan for iPhone is required for the life of your iPhone service and cannot be removed in the future. Data Plan for iPhone includes unlimited data in the U.S. Access rich HTML email and desktop-level web browsing, as well as Visual Voicemail to listen to voicemail messages in any order you choose. Please note: AT&T is Apple's exclusive carrier partner for iPhone in the United States. An eligible data plan for iPhone is required. This data plan covers data usage in the United States and does not cover international data usage and charges. If AT&T determines that you are using an iPhone on your account without an eligible data plan, AT&T reserves the right to add an eligible data plan to your account and bill you the appropriate monthly fee.
We do not know how much the iPhone 5 will cost. It will probably vary based on the provider and your service plan. Judging by the average price of iPhones at their initial release it may cost 700-800 US dollars for one without a service plan.
Contact the service provider you wish to be with for it to get the plan.
There is no way around paying for the data plan for the iPhone with AT&T. It is required for the entire duration that there is an iPhone on the account. The iPhone data plan is $15.00/month for the DataPlus 200MB for iPhone or $25.00/month for the DataPro 2GB for iPhone, in addition to your voice plan and other features that you may choose. AT&T frequently runs a sweep of all of its accounts and if it finds an account with an iPhone and the iPhone data plan is not on the account they are adding it, no questions asked.
$20 Unlimited $30
When you buy an iPhone, you will end up paying more for the data plan than you will for the phone itself. This data plan could cost you thirty or more dollars every month. You can see how that would add up by the end of a two-year contract. One way to reduce the total cost of your contract is to use an ATT iPhone coupon to cut down on the price of the phone itself. If you can save sixty dollars on the phone, that is the same as being allowed to skip two of the data plan payments.