Code strings like 'foldState' and 'angleDegrees' in iOS 27 beta 1 (not beta 4) provide the strongest software evidence yet that Apple is building a foldable iPhone, expected to be called the iPhone Ultra. A dual cell battery totaling approximately 4,883mAh has been reported by a single leaker citing a regulatory fil...

Create a landscape editorial hero image for this Studio Global article: Search & fact-check with cited sources for What software evidence from the iOS 27 beta 4, combined with supply-chain leaks and analyst repor. Article summary: The iOS 27 code provides genuine, quasi-official software proof that a foldable iPhone exists in development. The hardware specs (7.6–7.8" inner display, 5.3–5.5" cover, A20 chip, dual 48MP cameras, Touch ID, ~4,883mAh d. Topic tags: general, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fa
After years of rumors, Apple's first foldable iPhone — widely expected to be called the iPhone Ultra — finally appears to be real. The strongest evidence so far comes not from a supply chain leak, but from Apple's own software. Here is a verified summary of what is known, what is still uncertain, and where the information comes from.
Within hours of Apple releasing the iOS 27 developer beta 1 at WWDC on June 8, 2026, developers discovered hidden code strings that have no equivalent in iOS 26 . Developer Sam Henri Gold first spotted strings named
foldState, angleDegrees, and mechanicalAngleDegrees inside Apple's frameworks . These terms model whether a hypothetical device is folded or unfolded and can track the exact hinge angle — a concept that only applies to a foldable device
. 9to5Mac, MacRumors, and Bloomberg (via researcher M1Astra) independently confirmed the findings on the same day
.
Crucially, these discoveries came from iOS 27 beta 1, not beta 4. The public beta of iOS 27 followed around July 14 . The software evidence is strong confirmation that Apple is actively developing a foldable iPhone, but it does not definitively confirm any of the rumored hardware specifications.
The most specific battery leak comes from a single source, albeit a prolific one. Chinese leaker Digital Chat Station posted on Weibo that Apple's battery supplier registered two new cells with rated capacities of 1,921mAh and 2,962mAh, totaling 4,883mAh in a dual-cell (split) design . The claim is based on an alleged regulatory filing from the supplier and has been widely cited by MacRumors and HotHardware
.
However, this figure is not unanimous. Other analysts and supply-chain reports earlier speculated about a larger pack in the 5,400mAh to 5,800mAh range . The exact battery capacity remains an area of significant uncertainty until Apple makes an official announcement.
All of the following hardware details come from supply-chain leaks, leaker posts, and rumor roundups — not from Apple or directly from the iOS 27 code. They have been reported by multiple credible outlets, creating a moderate-to-strong consensus on most major components.
Key caveat: The display, chip, camera, and Touch ID details are consistent across several major outlets, but every single one remains unconfirmed by Apple.
Multiple sources broadly agree that the iPhone Ultra will cost at least $1,999. Digital Trends, Back Market, and others peg the 256GB model at around $1,999, with higher storage configurations (512GB or 1TB) pushing the price above $2,500 . Nikkei Asia reported that Apple expects an average selling price (ASP) near $2,500
. No exact per-tier pricing has been officially confirmed.
The iPhone Ultra is consistently expected to be announced in September 2026, alongside the iPhone 18 Pro lineup. This timeline is reported by 9to5Mac, Notebookcheck, Macworld, CNET, and others .
Apple has reportedly raised its initial production target for the foldable iPhone to 10 million units for 2026, up from an earlier forecast of 7–8 million. This figure comes from multiple outlets citing a Nikkei Asia report and is now widely accepted . Apple has reportedly booked parts for roughly 80 million smartphones in the second half of 2026, which includes the iPhone 18 Pro line and the new foldable
.
Despite the higher production target, there are mixed signals about early availability. A July 8 supply-chain report from 9to5Mac says multiple sources reject claims of delays and say the device is on track for September . However, other reports note early production bottlenecks and limited initial supply. Analyst Ming-Chi Kuo estimated that only 500,000 to 1 million units would be assembled in the third quarter of 2026
. This suggests that while the launch may happen on time, actual inventory could be very constrained for several weeks.
The iOS 27 code provides genuine, quasi-official software proof that a foldable iPhone exists in development. The rumored hardware specs — 7.6–7.8-inch inner display, 5.3–5.5-inch cover screen, A20 chip, dual 48MP cameras, and Touch ID — have broad but still-unofficial consensus from multiple supply-chain and leaker sources. The battery capacity is contested (4,883mAh versus ~5,800mAh). The September 2026 announcement is widely expected, with Apple targeting 10 million units for the year, though early supplies could be scarce. None of these details are confirmed by Apple.
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Code strings like 'foldState' and 'angleDegrees' in iOS 27 beta 1 (not beta 4) provide the strongest software evidence yet that Apple is building a foldable iPhone, expected to be called the iPhone Ultra.
Code strings like 'foldState' and 'angleDegrees' in iOS 27 beta 1 (not beta 4) provide the strongest software evidence yet that Apple is building a foldable iPhone, expected to be called the iPhone Ultra. A dual cell battery totaling approximately 4,883mAh has been reported by a single leaker citing a regulatory filing, but previous rumors suggested a larger 5,400–5,800mAh pack.
Pricing is expected to start at roughly $1,999 (256GB) and exceed $2,500 for higher configurations, with a September 2026 announcement alongside the iPhone 18 Pro lineup.