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Apple may be gearing up to launch its first foldable iPhone, according to a report by Macworld that analyzes newly discovered code within the latest iOS 27 developer beta. The beta version contains fresh references to a device equipped with two internal batteries, a significant departure from the single-battery configuration found in all current iPhone models.

The fourth developer beta of iOS 27 includes specific battery health strings that refer to "the batteries in this iPhone." This plural wording contrasts sharply with the singular phrasing used for existing iPhones, which only contain one battery. One string reportedly states, "the batteries in this iPhone are performing as expected," while another discusses the health of "the batteries," even noting the possibility that one might not be a genuine Apple component. Macworld points out that no current iPhone model would trigger these specific messages, strongly suggesting that Apple is developing software support for hardware featuring a dual-battery design.

These findings further fuel the ongoing speculation that Apple is actively developing a foldable iPhone. A dual-cell battery configuration is a common design choice for book-style foldable smartphones. This setup typically involves positioning one battery on each side of the device's hinge, which helps to maximize the available internal space. The recent discovery follows earlier hints found in the first iOS 27 beta, which reportedly contained code related to fold states and angle detection. These features were widely interpreted as potential indicators of Apple's preparation for foldable display support.