RAM in iPhone 13 unchanged from iPhone 12 modelsSeptember 15, 2021
Data mined from Apple’s Xcode confirms that the iPhone 13 lineup has the same amount of RAM as the corresponding iPhone 12 models.
The iPhone 13 and iPhone 13 mini have 4GB of RAM. The iPhone 13 Pro and iPhone 13 Pro Max have 6GB of RAM. These values are identical to the iPhone 12 models.