By Michael Oleaga / m.oleaga@latinospost.com (staff@latinospost.com) | First Posted: Mar 19, 2013 11:41 AM EDT

Apple and Samsung flagship smartphones are receiving special offers courtesy of RadioShack.

While Samsung's Galaxy S3 and Apple's iPhone 5 smartphones are available across a few U.S. carriers, the following deal is only available with Sprint.

Starting with the Galaxy S3, the smartphone with 4.8-inch display is available for new Sprint customers for $49.99. The deal will include free second-business day shipping through FedEx and "Free Expert Support for the life of your device."

The $49.99 price tag does not include the service plan new customers must select before final purchase. New customers have the option to be part of Sprint's 450, 900, or Unlimited plans, which has a starting billing price of $69.99 to $99.99, taxes not included.

Existing Sprint customers can upgrade to the Galaxy S3 for $99.99 and maintain the free second-business day shipping through FedEx and "Free Expert Support for the life of your device."

The replacement device price, which features no contract changes, will see the Galaxy S3 price skyrocket to $599.99. No service plan is necessary with the $599.99 offer.

The Galaxy S3 offer is available for purchase online, however, the iPhone 5 deal is only obtainable in-stores.

RadioShack is letting customers save $50 on the iPhone 5 if they qualify in Sprint's two-year plan. The offer is valid for new activations between March 15 and ends April 4.

Currently, Apple lists the 16GB model of the iPhone 5 at $199 while the 32GB and 64GB is priced at $299 and $399, respectively.

The $50 offer is also valid for the iPhone 4S.

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