Apple · iPhone
iPhone Duo
The iPhone Duo is Apple's first foldable iPhone, a book-style phone with a 7.6-inch inner screen, a 5.4-inch outer screen and the A20 Pro chip, for people who want a larger iPhone screen that folds to a pocketable size.
- Screen
- 7.6″
- Display
- LTPO OLED, 120 Hz
- Chip
- A20 Pro
- Memory
- –
- Storage
- 256 GB – 2 TB
- Main camera
- 48 MP
- Zoom
- –
- Battery
- –
- Weight
- 254 g
Specifications
Report a wrong or missing specDisplay
- Main screen
- 7.6″
- Resolution
- 2670 × 1878
- Sharpness
- 430 pixels per inch
- Panel
- LTPO OLED
- Refresh rate
- 120 Hz
- Peak brightness
- 3,000 nits
- Cover screen
- 5.4″, 2034 × 1398, 120 Hz
- Display type
- Super Retina XDR OLED folding display (inner) with nano-texture finish and wide-angle OLEDs; Dynamic Island on both displays
- Pixel density
- 430 ppi (inner); 460 ppi (outer)
- Brightness detail
- Both displays 1,000 nits max (typical); 1,600 nits peak (HDR); 3,000 nits peak (outdoor); 1 nit minimum
- Always-on display
- Yes
- Screen protection
- Ceramic Shield 2 on the outer display, Ceramic Shield back; inner display has a scratch-resistant coating over a nano-textured custom polymer cover layer, high-strength glass above and below the panel and a titanium plate beneath
- Display features
- ProMotion adaptive refresh up to 120 Hz; HDR; True Tone; Wide colour (P3); Haptic Touch; 2,000,000:1 contrast ratio (typical); anti-reflective coating; Apple Pencil (USB-C) support on either display, which Apple says is coming later in 2026
- Cover screen
- 5.4-inch Super Retina XDR OLED, 1398 x 2034 at 460 ppi, ProMotion up to 120 Hz, same aspect ratio as the inner display; measured as a standard rectangle the screens are 7.58 and 5.36 inches
Performance
- Chip
- A20 Pro
- Storage
- 256 GB, 512 GB, 1 TB, 2 TB
- CPU
- 6-core CPU with 2 super cores and 4 efficiency cores; 2-nanometre process
- GPU
- 7-core GPU with Neural Accelerators; hardware-accelerated ray tracing
- AI engine
- Dual 16-core Neural Engine
- Cooling
- Custom vapour chamber connected directly to the chip package; up to 35% better sustained performance than iPhone 17 Pro (Apple)
Cameras
- Main camera
- 48 MP
- Ultra wide camera
- 48 MP
- Telephoto camera
- None
- Optical zoom
- None
- Front camera
- 12 MP
- Main camera
- 48MP Fusion Main, 26 mm, ƒ/1.6 aperture, sensor-shift optical image stabilisation, Hybrid Focus Pixels; 24MP and 48MP photos
- Ultra wide camera
- 48MP Fusion Ultra Wide, 13 mm, ƒ/2.2 aperture, 120° field of view, Hybrid Focus Pixels; 24MP and 48MP photos
- Front camera
- 12MP Center Stage camera (outer), ƒ/2.2 aperture; under-display FaceTime camera in the inner display, ƒ/1.8 aperture, 1080p video (resolution in megapixels not published)
- Zoom
- 12MP optical-quality 2x Telephoto (52 mm, ƒ/1.6) from the Main camera; 2x optical-quality zoom in, 2x optical zoom out (4x optical-quality zoom range); digital zoom up to 10x (6x for video)
- Video recording
- 4K Dolby Vision at 24, 25, 30 or 60 fps, and at 100 or 120 fps on the Fusion Main camera; 1080p Dolby Vision up to 120 fps; Cinematic mode up to 4K Dolby Vision at 60 fps, with effects applied after capture; Action mode up to 2.8K Dolby Vision at 60 fps; slo-mo 1080p up to 240 fps and 4K Dolby Vision up to 120 fps (Fusion Main); Dual Capture up to 4K Dolby Vision at 30 fps; macro video; HEVC and H.264
- Front video
- Outer camera 4K Dolby Vision at 24, 25, 30 or 60 fps, Cinematic mode up to 4K Dolby Vision at 30 fps, slo-mo 1080p at 120 fps; inner camera 1080p at 30 or 60 fps
- Camera features
- Smart Take; Duo Preview and Kid Cue on the outer display; Photographic Styles 3; smart focus tracking; Photonic Engine; Deep Fusion; Smart HDR 5; Night mode; next-generation portraits with Focus and Depth Control; panorama up to 63MP; 48MP macro photography; True Tone flash; sapphire crystal lens cover; Camera Control; HEIF and JPEG; no Pro controls
Battery and charging
- Video playback (maker's claim)
- Up to 31 hours
- Wireless charging
- Up to 25 W
- Battery life detail
- Two lithium-ion batteries, one in each half, managed as one; up to 24 hours typical use (equal use of both displays); video playback up to 31 hours on the inner display and 44 hours on the outer; streamed video up to 26 hours inner and 37 hours outer
- Wired charging
- Up to 50% in around 20 minutes with a 60W-capable USB-C adapter or higher (sold separately); Apple doesn't give a maximum wattage
- Wireless charging
- MagSafe and Qi2 up to 25W; up to 50% in around 30 minutes with a 35W adapter or higher and a MagSafe Charger
Connectivity
- Satellite messaging
- Yes
- Mobile network
- Apple C2 modem; 5G (sub-6GHz) with 4x4 MIMO; Gigabit LTE with 4x4 MIMO; UK model A3720 (US model A3447 adds mmWave)
- SIM
- Dual eSIM only (two active, eight or more stored); no physical SIM
- Wi-Fi
- Wi-Fi 7 (802.11be) with 2x2 MIMO; Apple N1 wireless networking chip
- Bluetooth
- Bluetooth 6; Thread
- Ultra Wideband
- Apple second-generation Ultra Wideband chip
- NFC
- NFC with reader mode; Express Cards with power reserve
- Satellite features
- Emergency SOS via satellite; Roadside Assistance via satellite; Find My via satellite; Messages via satellite in the US
- USB
- USB-C with charging, DisplayPort and USB 3 (up to 10Gb/s); video out up to 4K HDR
- Positioning
- Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou and NavIC); digital compass; iBeacon micro-location
Design
- Type
- Foldable
- Weight
- 254 g
- Thickness
- 11.3 mm
- Height × width
- 117.8 × 84.1 mm
- Water and dust resistance
- IP68
- Stylus
- Yes
- Size unfolded
- 117.8 × 164.6 × 5.2 mm (height × width × thickness)
- Materials
- Grade 5 titanium enclosure with a mirror-polished finish (85% recycled titanium); 3D-printed titanium hinge cover with a micro-blasted finish; Ceramic Shield back
- Colours
- Star White, Night Sky
- Buttons
- Side button with Touch ID; Camera Control; volume up/down; no Action button
- Water resistance detail
- IP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529
- Biometrics
- Touch ID fingerprint sensor in the side button
- Sensors
- Touch ID; barometer; high dynamic range gyro; high-g accelerometer; proximity sensor; four ambient light sensors
- Speakers
- Built-in stereo speakers
- Microphones
- Built-in microphones; Voice Isolation and Wide Spectrum modes
Software
- Operating system
- iOS
- Software at launch
- iOS 27.1 (Apple's press release; the spec page lists iOS 27)
- AI features
- Apple Intelligence; Siri AI (beta, English at launch, not initially available in the EU); Siri Camera mode through Camera Control
- Safety features
- Crash Detection
- In the box
- iPhone Duo, USB-C Charge Cable (1 m); no power adapter
Storage options
| Storage |
|---|
| 256 GB |
| 512 GB |
| 1 TB |
| 2 TB |
Pros and cons
Pros
- 7.6-inch inner and 5.4-inch outer screens with the same aspect ratio, both up to 120 Hz and 3,000 nits outdoors
- 5.2 mm thick when open, the thinnest iPhone so far
- IP68 dust and water resistance (to 6 metres for up to 30 minutes)
Cons
- 254 g and 11.3 mm thick when closed
- No telephoto camera; 2x is an optical-quality crop from the 48MP main camera
Closest rivals
Model | Screen | Display | Chip | Memory | Storage | Main camera | Zoom | Battery | Weight | Released |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.6″ | LTPO OLED, 120 Hz | Snapdragon 8 Elite Gen 5 for Galaxy | 12 GB – 16 GB | 256 GB – 1 TB | 50 MP | – | 4,800 mAh | 201 g | Aug 2026 | |
| 7.95″ | LTPO OLED, 120 Hz | Qualcomm Snapdragon 8 Elite Gen 5 | 16 GB | 512 GB | 50 MP | 3× | 6,660 mAh | 219 g | Mar 2026 | |
| 8″ | LTPO OLED, 120 Hz | Snapdragon 8 Elite Gen 5 for Galaxy | 12 GB – 16 GB | 256 GB – 1 TB | 200 MP | 3× | 5,000 mAh | 215 g | Aug 2026 |
Sources
- apple.com/uk/iphone-duo/specs
- apple.com/uk/newsroom/2026/09/apple-unveils-iphone-duo
- apple.com/uk/shop/buy-iphone/iphone-duo
- apple.com/uk/iphone-duo
- apple.com/iphone-duo/specs