After officially revealing the iPhone 6s and 6s Plus this morning, Apple confirmed pricing and availability details for both new models. Off-contract, the iPhone 6s will sell for either $649 (16GB), $749 (64GB) or $849 (128GB), versus $749 (16GB), $849 (64GB) or $949 (128GB) for the iPhone 6s Plus. Both of the new iPhones will be available for pre-order on September 12, and reach first customers on September 25.

On a 24-month contract, the iPhone 6s will sell for $199 (16GB), $299 (64GB), and $399 (128GB). Carrier financing for the 6s will start at $27 per month over 24 months. Each iPhone 6s Plus model will sell for a $100 premium over the iPhone 6s, ranging from $299 to $499. Carrier financing will start at $31 per month over 24 months. Apple will continue to offer the older iPhone 5s in two capacities ($0/16GB, $49/32GB), with the iPhone 6 ($99/16GB, $199/64GB) and iPhone 6 Plus ($199/16GB, $299/64GB) also at two capacities each.

Apple also announced an iPhone Upgrade Program, enabling customers to get the latest iPhone each year with their choice of carriers. The program will include an unlocked phone with AppleCare+, starting at $32 per month.