CUPERTINO, California — Apple's long-rumored foldable iPhone, widely expected to carry the premium "Ultra" branding, is shaping up as the most ambitious device in the company's smartphone history ahead of a anticipated September 2026 launch.

Industry analysts and supply chain reports indicate the iPhone Ultra will represent a new top-tier model alongside the iPhone 18 Pro and Pro Max, potentially priced north of $2,000 and introducing a book-style foldable design that transforms from a compact phone into a tablet-like experience. As excitement builds in April 2026, here are 10 key things enthusiasts and potential buyers must know about this groundbreaking device based on the latest leaks and expert analysis.

It's Apple's First Foldable iPhone, Likely Named iPhone UltraThe device marks Apple's entry into the foldable smartphone category after years of development and patent filings. Multiple reliable sources, including Bloomberg's Mark Gurman and Chinese leakers such as Instant Digital, suggest it will be branded as the iPhone Ultra rather than simply iPhone Fold. This naming aligns with Apple's Ultra strategy seen in the Apple Watch Ultra and rumored future MacBook and AirPods models, positioning it as the ultimate premium offering in the lineup.

Book-Style Design with Passport-Like Form FactorUnlike many competing foldables that open like a book with a tall aspect ratio, the iPhone Ultra is expected to feature a wider, more square "passport-style" shape when closed. This design choice aims for better one-handed usability and pocketability. When unfolded, it delivers a large inner display while maintaining a slim profile that could redefine mobile productivity and media consumption.

Dual Displays: 5.5-Inch Outer and 7.8-Inch InnerThe outer screen when folded is rumored to measure approximately 5.5 inches, providing a functional phone experience without needing to unfold for quick tasks. Once opened, users gain access to a expansive 7.8-inch inner OLED panel — nearly the size........

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