Apple’s iPhone 18 Pro and Foldable iPhone Duo: What Was Announced

Apple’s September 9, 2026 event introduced the iPhone 18 Pro, iPhone 18 Pro Max, and iPhone Duo, Apple’s first foldable iPhone. The key distinction is timing: the Pro models were set to arrive in September, while the Duo is scheduled for an October release. Available official and contemporaneous reporting supports several launch facts, but not every detailed modem claim circulating around the event. 2815

The headline launch details

The iPhone 18 Pro starts at $1,199, and the iPhone 18 Pro Max starts at $1,299. Preorders for both open September 12, with availability beginning September 18. 1516

Apple’s foldable iPhone is called iPhone Duo. It starts at $1,999 for 256GB, with preorders opening October 16 and availability beginning October 23. 28616

The later Duo date means buyers deciding between a conventional Pro model and Apple’s first foldable are not choosing between products with the same delivery window.

What Apple confirmed about iPhone Duo

Apple describes iPhone Duo as its first foldable iPhone. When opened, it has a 7.6-inch inner display and is described by Apple as the thinnest iPhone yet; Apple also highlights a redesigned iOS experience for the larger screen. 28

Reporting from the event says the Duo uses Apple’s A20 Pro chip and Apple’s custom C2 modem. The Duo begins with 256GB of storage and can be configured with up to 2TB. 6

Those are the clearest C2 facts supported by the supplied materials: Apple’s modem is part of the Duo’s connectivity stack, alongside the A20 Pro chip.

C2 modem: what is established, and what is not

The available sources support that the C2 modem powers connectivity in the foldable Duo. 26 They do not provide an authoritative, complete technical specification for its supported 5G bands, upload-performance gains, energy-efficiency improvements, or other radio capabilities.

Likewise, the supplied material does not establish a final product configuration in which the iPhone 18 Pro uses Apple’s modem while the iPhone 18 Pro Max uses an unidentified Qualcomm modem. Pre-event reporting presented the possibility that some U.S. phones could retain Qualcomm modems for mmWave support, but that was framed as a possibility rather than a confirmed launch specification. 4

As a result, claims that Apple split modem suppliers between the two Pro models because of supply constraints—or that such a split has a particular network-performance implication—should be treated as unverified unless Apple publishes model- and region-specific radio documentation.

Pro model hardware, colors, and storage

Event coverage reports that both the iPhone 18 Pro and iPhone 18 Pro Max use the A20 Pro processor and have a 48MP variable-aperture main camera. 14 Another launch report lists burgundy, glacier, silver, and black finishes, with 256GB, 512GB, 1TB, and 2TB storage options for both Pro phones. 3

However, the supplied sources do not provide a definitive Apple technical-specification page for the Pro pair. Readers looking for region-specific cellular support, battery ratings, or final configuration details should rely on Apple’s product pages and technical specifications when available rather than extrapolating from launch coverage.

Apple’s leadership transition happened at the same time

The event followed a major leadership change announced by Apple in April. Tim Cook became executive chairman of Apple’s board, while John Ternus became CEO, both effective September 1, 2026. Arthur Levinson moved from non-executive chairman to lead independent director, and Ternus joined Apple’s board. 32

That made the September 9 product event one of Ternus’s first major launches as Apple CEO. 215

Bottom line

The best-supported conclusion is straightforward: Apple launched two iPhone 18 Pro models and the iPhone Duo; the Duo is Apple’s first foldable, starts at $1,999, uses an A20 Pro chip and C2 modem, and arrives in October. The Pro phones arrive earlier and start at $1,199 and $1,299. 28615

The more granular C2 claims—specific 5G band coverage, quantified battery or upload improvements, and a confirmed Apple-modem/Qualcomm-modem split between Pro models—are not established by the source material provided here. That distinction matters for buyers, especially where mmWave support and carrier compatibility can vary by region. 4