Apple/Screenshot
Preorders start September 12 and the phones launch on September 25.
The iPhone 6S on contract will cost $199 for 16GB, $299 for 64GB, and $399 for 128GB. The iPhone 6S Plus will be $100 more expensive for each configuration.
Apple's also introducing something called the "iPhone upgrade program" that will make it cheaper for people to get new iPhones every year. You'll pay $32 a month for two years, but be able to get new iPhones every year.
Apple's also adding a new "rose gold" color to the line-up.
Here's how that looks:
Apple
Here's a quick-and-dirty look at all the new features:
Apple