Introducing the Apple iPhone Duo
After years of rumours and leaks Apple finally unveiled its first foldable phone – the iPhone Duo. The device arrives alongside the iPhone 18 Pro and iPhone 18 Pro Max, as well as the new Apple Watch Series 12 and Apple Watch Ultra 4. With a 7.6‑inch inner display and a 5.4‑inch outer panel the Duo aims to blend the power of a flagship iPhone with the flexibility of a tablet‑size screen.
Key specifications at a glance
The iPhone Duo ships with the A20 Pro chipset and the upgraded C2 modem, promising fast 5G connectivity and improved power efficiency. Storage options range from 256 GB to 2 TB, with prices starting at £1,999 or $1,999. Battery life is split between two cells, delivering up to 31 hours of video playback on the inner display and 44 hours when using only the outer screen.
Why the larger inner display matters
The 7.6‑inch screen is comparable to the iPad Mini and offers a tablet‑like experience in a pocketable form factor. Users can stream Apple TV+, browse the web, or play games on a display that feels more immersive than a traditional smartphone. When folded, the 5.4‑inch outer panel works like a regular iPhone, perfect for quick replies, navigation or checking notifications.
Multitasking arrives on iPhone
For the first time Apple brings true multitasking to its mobile OS. A tailor‑made version of iOS re‑positions app controls to the side of the inner screen, allowing two Safari windows, an email and a notes pane, or a split view of Slack and Calendar. This iPad‑style functionality is a game‑changer for professionals who need more screen real estate without carrying a separate tablet such as the iPad Air M2.
Design and user interface tweaks
Because the Duo’s screens have different aspect ratios, Apple redesigned the lock screen and quick‑access buttons. Icons are stacked vertically on the right side, and status information like Wi‑Fi and battery is condensed into a single icon near the selfie camera. The transition animation when unfolding the device feels smooth and reinforces the premium feel.
Battery and performance
The dual‑battery architecture ensures the device can handle the power draw of two large displays. With the A20 Pro chip, the iPhone Duo matches the efficiency of the iPhone 17 Pro Max while offering the extra screen space. The C2 modem also improves network performance, making video calls and streaming more reliable on the go.
Pricing, availability and competition
Pre‑orders began on 16 October and the phone ships on 23 October, a month after the iPhone 18 Pro series launch. At £1,999/$1,999 the Duo is the most expensive Apple phone to date, outpricing the Samsung Galaxy Z Fold 8 which starts at £1,699/$1,899.99. The higher‑end Samsung Galaxy Z Fold 8 Ultra reaches £1,899/$2,099.99, still slightly cheaper in the US market.
What to expect next
Apple has not revealed the iPhone 17e, iPhone Air or other variants that were expected after the iPhone 17 launch. Analysts predict a separate spring event will showcase those models. In the meantime the iPhone Duo dominates the conversation as Apple’s answer to the foldable market.
Frequently asked questions
What is the iPhone Duo? Apple’s first foldable phone, previously rumored as iPhone Ultra or iPhone Fold.
How much does it cost? Prices start at £1,999/$1,999 for the 256 GB version.
When will it be released? Official shipping date is 23 October.
Does it support multitasking? Yes, iOS on the Duo includes split‑screen and picture‑in‑picture features.
Is it more expensive than the Samsung Galaxy Z Fold 8? Yes, the Duo’s entry price exceeds the Z Fold 8’s starting price.