As first reported by The Verge, while the new iPhone 12 mini starts at $699 and iPhone 12 starts at $799, those prices are only for AT&T or Verizon devices. If you want a device that works with T-Mobile, Sprint, or is unlocked to use with any carrier, your new iPhone will cost $30 more on any of the storage configurations. The iPhone 12 Pro and 12 Pro Max series does not appear to have this sneaky price increase.
iPhone 12 will be available for preorder on October 16th, with a release on October 23rd. iPhone 12 mini will be available for preorder on November 6th, with a release on November 13th. This year, preorders will begin at 5AM Pacific. Regardless of your carrier, you can preorder or purchase your device on the same day as everyone else.