Apple has officially unveiled the iPhone Duo, its first foldable phone, at a keynote that also introduced the iPhone 18 Pro and Pro Max, Apple Watch Series 12 and Ultra 4, and new Siri features. The iPhone Duo starts at €2,339 and will be available for pre-order on October 16. This marks Apple's long-awaited entry into the foldable market, positioning it against rivals like Samsung and others.
iPhone Duo Design and Displays
The iPhone Duo features a 7.6-inch inner foldable display and a 5.4-inch outer display. Both are Super Retina XDR OLED panels with a nano-textured finish, ProMotion, Always-On support, and a peak brightness of 3,000 nits. This makes them among the brightest and most advanced displays on any phone.
The foldable design allows users to switch between a compact phone and a tablet-like experience. The nano-texture reduces glare, and the high brightness ensures visibility even in direct sunlight.

Performance: Apple A20 Pro Chip
At the heart of the iPhone Duo is the Apple A20 Pro chip, built on a 2nm process. It features a 6-core CPU, a 7-core GPU with Neural Accelerators, and a dual 16-core Neural Engine. This setup promises significant performance and efficiency gains, enabling advanced AI features and smooth multitasking.

The 2nm architecture is a first for Apple, likely delivering better battery life and thermal management compared to previous generations.

Camera System
The iPhone Duo sports a dual 48MP camera system on the back: a main 48MP sensor with telephoto capabilities and 2x optical zoom, plus a 48MP ultra-wide sensor. The main camera includes sensor-shift optical image stabilization.

For selfies and video calls, there's a 12MP Center Stage camera on the outer display, and an under-display FaceTime camera on the inner screen that remains hidden when not in use. This is a clever way to maintain a seamless display without a notch or punch-hole.
Battery Life and Charging
The iPhone Duo uses a dual-battery system, one on each side of the fold. Apple claims up to 31 hours of video playback using the inner display, up to 44 hours with the outer display, and up to 24 hours with combined use.
Fast charging is supported: 50% in about 20 minutes with a cable, or 30 minutes wirelessly via MagSafe or Qi2. This should alleviate concerns about battery life in a foldable form factor.
Connectivity and Other Features
The phone includes USB-C, Wi-Fi 7, and Bluetooth (version not specified). These ensure fast data transfer and future-proof wireless connectivity.
Key Takeaways
- First foldable iPhone: 7.6-inch inner and 5.4-inch outer displays with ProMotion and 3,000 nits peak brightness.
- Powerful A20 Pro chip: 2nm process, 6-core CPU, 7-core GPU, and 16-core Neural Engine.
- Dual 48MP cameras: Main with 2x optical zoom and sensor-shift OIS, plus ultra-wide; under-display selfie camera.
- Long battery life: Up to 44 hours video playback on outer screen; fast charging (50% in 20 min wired).
- Pricing and availability: Starts at €2,339; pre-orders open October 16.
iPhone Duo vs. iPhone 18 Pro: Key Specs Comparison
| Feature | iPhone Duo | iPhone 18 Pro (for reference) |
|---|---|---|
| Display | 7.6" inner + 5.4" outer, OLED, 3,000 nits | 6.1" OLED (typical) |
| Chip | Apple A20 Pro (2nm) | Apple A20 Pro (expected) |
| Rear Cameras | 48MP main + 48MP ultra-wide | 48MP main + ultra-wide + telephoto (expected) |
| Battery Life (video) | Up to 44 hours (outer screen) | Up to 33 hours (typical) |
| Price | From €2,339 | From €1,199 (expected) |
Note: iPhone 18 Pro specs are based on typical Apple patterns and may vary. The background to this story is set out in Apple's Foldable iPhone Duo: Why It Took So Long to Launch. A related thread runs through iPhone 18 Pro and Pro Max: Best iPhones With Variable Aperture Camera. Earlier coverage in iPhone Duo Preorder: Apple's First Foldable Now Available shows how the argument developed.
What This Means for the Foldable Market
Apple's entry into foldables legitimizes the category and could spur innovation. The iPhone Duo's high price positions it as a premium device, but its advanced features may attract early adopters. Competitors will need to respond with better specs or lower prices. A closer look at the same subject appears in iPhone Duo Review: Apple's Foldable Hides the Crease Well. Anyone following the wider picture can start with iPhone Duo Foldable Software: Apple's Real Advantage. The same theme surfaces in Apple Event Recap: iPhone Duo, iPhone 18 Pro, Watch Series 12, which takes a different angle.
For consumers, the iPhone Duo offers a seamless integration with Apple's ecosystem, including new Siri capabilities. The dual-battery system and efficient chip suggest Apple has addressed common foldable pain points like battery life and durability. Context on how this played out before sits in iPhone 18 Pro and 18 Pro Max Preorders in Spain: Where to Buy Today. A companion piece, iPhone Duo Review: The Biggest iPhone Change Isn't the Best iPhone, approaches the same subject from another angle.
FAQ
When can I pre-order the iPhone Duo?
Pre-orders start on October 16. Availability date was not specified in the announcement, but pre-orders typically ship within a week or two.
How much does the iPhone Duo cost?
The iPhone Duo starts at €2,339. Pricing for other storage tiers or configurations was not announced.
Does the iPhone Duo have a headphone jack?
No, like other modern iPhones, it relies on Bluetooth or USB-C for audio. The Bluetooth version was not specified.
What is the iPhone Duo's water resistance rating?
Apple did not mention water resistance during the keynote. We'll update if more information becomes available.