iPhone 18 Pro and Duo Were Once Planned With 16GB RAM, Leaker Says

Apple reportedly once intended to include 16GB of RAM in the iPhone 18 Pro lineup and the iPhone Duo, according to leaker Instant Digital. However, the specific timing of this planned capacity is not disclosed in the brief Weibo post. The iPhone 18 Pro and iPhone 18 Pro Max are confirmed to have 12GB of RAM, as per Xcode 27, which aligns with the specifications of the iPhone 17 Pro models.

The iPhone Duo is also speculated to have 12GB of RAM, though the Xcode data for the Pro models did not yet incorporate the foldable design. Rumors had suggested a 12GB capacity for the iPhone 18 Pro well before its release. In April 2025, supply chain analyst Ming-Chi Kuo forecasted that the iPhone 18 lineup would feature 12GB of RAM.

Similar projections were made by analyst Jeff Pu in January, who also predicted the same capacity for Apple's first foldable iPhone. A March report indicated that Samsung would supply 12GB memory modules for the iPhone Duo. The memory shortage is likely the reason behind the change in plans. The report mentioned the surge in prices for 12GB modules, while Bloomberg's Mark Gurman reported that memory costs prompted Apple to consider a higher starting price for the foldable device.

Kuo also stated that DRAM shortages were compelling Apple to revise its 2026 hardware shipment projections. iPhone Duo pre-orders commence on October 16, preceding its availability on October 23.