Amazon selling 16 GB Galaxy S III for $99 Amazon is offering the 16 GB Galaxy S III to new AT&T, Verizon and Sprint customers for $99. Amazon / September 11, 2012 On the eve of Apple's expected rollout of a new iPhone, Amazon has slashed by half the price of a Galaxy S III smartphone for new activations. The Seattle online retailer is selling the 16-gigabyte version of the phone for $99 for those who sign up for a two-year service contract with wireless carriers AT&T, Verizon and Sprint. Amazon said the offer was for a "very limited time" but did not specify when it would expire. Amazon is also offering smaller discounts for those who already have an account with one of the carriers and want to upgrade to the Galaxy S III. Purchasers of the Sprint and Verizon versions of the phone can save $50 and AT&T buyers can save $20. Users can also get a discount if adding a family line, knocking the price down to $119 for the Sprint version and $139 for Verizon. Normally, Sprint, Verizon and AT&T sell the 16 GB Galaxy S III for $199 for new activations. Amazon does not sell the phone for T-Mobile customers.