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AppleDevices · read Oct 12, 2026

iPhone Duo

The technical specifications as Apple publishes them, grouped as on apple.com. Copied as written; we add nothing.

Source: apple.com
Spec groups36
Spec rows39
Official charts0
Sibling devices5
ReadOct 2026

Compare with

iPhone 18 Pro and 18 Pro MaxiPhone 17iPhone 17eiPhone AiriPhone 16

Chips named on its spec page

Apple A20 and A20 Pro

Spec sheet

Finish

  • Night Sky, Star White
  • Titanium foldable design
  • Ceramic Shield 2 front
  • Ceramic Shield back

Capacity

  • 256GB
  • 512GB
  • 1TB
  • 2TB

Size and Weight

column 1
  • Open
  • Weight: 8.96 ounces (254 grams)
column 2
  • Closed
  • Weight: 8.96 ounces (254 grams)

Displays

column 1
  • Inner display
  • Super Retina XDR display
  • 7.6-inch (diagonal) all-screen OLED folding display
  • 1878-by-2670-pixel resolution at 430 ppi
  • Nano-texture finish
  • Wide-angle OLEDs
column 2
  • Outer display
  • Super Retina XDR display
  • 5.4-inch (diagonal) all-screen OLED display
  • 1398-by-2034-pixel resolution at 460 ppi
column 3
  • Both displays
  • Dynamic Island
  • Always-On display
  • ProMotion technology with adaptive refresh rates up to 120Hz
  • HDR display
  • True Tone
  • Wide color (P3)
  • Haptic Touch
  • 2,000,000:1 contrast ratio (typical)
  • 1000 nits max brightness (typical)
  • 1600 nits peak brightness (HDR)
  • 3000 nits peak brightness (outdoor)
  • 1 nit minimum brightness
  • Fingerprint-resistant oleophobic coating
  • Anti-reflective coating
  • Support for display of multiple languages and characters simultaneously
  • Supports Apple Pencil (USB-C)
  • The iPhone Duo displays have rounded corners that follow a beautiful curved design, and these corners are within a standard rectangle. When measured as a standard rectangular shape, the screens are 7.58 and 5.36 inches diagonally (actual viewable area is less).

Splash, Water, and Dust Resistant

Rated IP68 (maximum depth of 6 meters up to 30 minutes) under IEC standard 60529

Apple Intelligence and Siri AI

The next generation of Apple Intelligence is centered around you, integrated into your apps, and built with privacy. Apple Intelligence powers Siri AI, an entirely new version of Siri that’s more personal, conversational, and powerful, along with helpful features across apps.

Chip

  • A20 Pro chip
  • 6-core CPU with 2 super cores and 4 efficiency cores
  • 7-core GPU with Neural Accelerators
  • Dual 16-core Neural Engine
  • Hardware-accelerated ray tracing

Camera

  • 48MP Dual Fusion camera system
  • 48MP Fusion Main: 26 mm, ƒ/1.6 aperture, sensor-shift optical image stabilization, Hybrid Focus Pixels, super-high-resolution photos (24MP and 48MP)
  • Also enables 12MP optical-quality 2x Telephoto: 52 mm, ƒ/1.6 aperture, sensor-shift optical image stabilization, Hybrid Focus Pixels
  • 48MP Fusion Ultra Wide: 13 mm, ƒ/2.2 aperture and 120° field of view, Hybrid Focus Pixels, super-high-resolution photos (24MP and 48MP)
  • 2x optical-quality zoom in, 2x optical zoom out
  • 4x optical-quality zoom range
  • Digital zoom up to 10x
  • Smart Take
  • Duo Preview
  • Photographic Styles 3
  • Smart focus tracking
  • Customizable default lens (Fusion Main)
  • Sapphire crystal lens cover
  • True Tone flash
  • Photonic Engine
  • Deep Fusion
  • Smart HDR 5
  • Next-generation portraits with Focus and Depth Control
  • Portrait Lighting with six effects
  • Night mode
  • Panorama (up to 63MP)
  • 48MP macro photography
  • Wide color capture for photos and Live Photos
  • Lens correction (Fusion Ultra Wide)
  • Advanced red-eye correction
  • Auto image stabilization
  • Burst mode
  • Photo geotagging
  • Image formats captured: HEIF and JPEG

Video Recording

  • 4K Dolby Vision video recording at 24 fps, 25 fps, 30 fps, 60 fps, 100 fps (Fusion Main), or 120 fps (Fusion Main)
  • 1080p Dolby Vision video recording at 25 fps, 30 fps, 60 fps, or 120 fps (Fusion Main)
  • 720p Dolby Vision video recording at 30 fps
  • Cinematic mode up to 4K Dolby Vision at 60 fps
  • Cinematic mode effects from video (Fusion Main)
  • Duo Preview
  • Smart focus tracking
  • Improved low-light video at 1080p
  • Action mode up to 2.8K Dolby Vision at 60 fps
  • Macro video recording, including slo-mo and time-lapse
  • Slo-mo video support for 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
  • Time-lapse video with stabilization up to 4K Dolby Vision
  • Night mode Time-lapse
  • QuickTake video up to 4K Dolby Vision at 60 fps
  • Sensor-shift optical image stabilization for video (Fusion Main)
  • Digital zoom up to 6x
  • Audio zoom
  • True Tone flash
  • Cinematic video stabilization (4K, 1080p, and 720p)
  • Continuous autofocus video
  • Take 8MP still photos while recording 4K video
  • Playback zoom
  • Video formats recorded: HEVC and H.264
  • Spatial Audio and stereo recording
  • Wind noise reduction
  • Audio Mix

Front Camera

  • Outer
  • 12MP Center Stage camera
  • ƒ/2.2 aperture
  • Retina Flash
  • Smart Take
  • Kid Cue
  • Photographic Styles 3
  • Improved low-light video at 1080p
  • Tap to zoom and rotate
  • Center Stage for photos
  • Ultra-stabilized video
  • Dual Capture
  • Center Stage for video calls
  • Photonic Engine
  • Deep Fusion
  • Smart HDR 5
  • Next-generation portraits with Focus and Depth Control
  • Portrait Lighting with six effects
  • Animoji and Memoji
  • Night mode
  • Wide color capture for photos and Live Photos
  • Lens correction
  • Auto image stabilization
  • Burst mode
  • 4K Dolby Vision video recording at 24 fps, 25 fps, 30 fps, or 60 fps
  • 1080p Dolby Vision video recording at 25 fps, 30 fps, or 60 fps
  • Cinematic mode up to 4K Dolby Vision at 30 fps
  • Cinematic mode effects from video (Fusion Main)
  • Slo-mo video support for 1080p at 120 fps
  • Time-lapse video with stabilization up to 4K Dolby Vision
  • Night mode Time-lapse
  • QuickTake video up to 4K at 60 fps in Dolby Vision
  • Cinematic video stabilization (4K, 1080p, and 720p)
  • Spatial Audio and stereo recording
  • Wind noise reduction
  • Audio Mix
  • Inner
  • Under-display FaceTime camera
  • Center Stage for video calls
  • ƒ/1.8 aperture
  • Tap to zoom and rotate
  • Ultra-stabilized video
  • 1080p video recording at 30 or 60 fps
  • Animoji and Memoji in FaceTime
  • Wide color capture for photos and Live Photos
  • Lens correction
  • Auto image stabilization
  • QuickTake video at 1080p at 30 fps and 60 fps
  • Spatial Audio and stereo recording
  • Wind noise reduction
  • Audio Mix

Power and Battery

  • Typical use
  • Up to 24 hours
  • Video playback
  • Up to 44 hours when using the outer display
  • Up to 31 hours when using the inner display
  • Video playback (streamed)
  • Up to 37 hours when using the outer display
  • Up to 26 hours when using the inner display
  • Dual built-in rechargeable lithium-ion batteries
  • Fast-charge capable: Up to 50% charge in around 20 minutes with 60W-capable adapter or higher (available separately) paired with USB-C charging cable
  • Up to 50% charge in around 30 minutes with 35W adapter or higher paired with MagSafe Charger (both available separately)

Touch ID

Fingerprint sensor built into the side button

Peace of Mind

  • Emergency SOS via satellite
  • Crash Detection
  • Roadside Assistance via satellite
  • Messages via satellite
  • Find My via satellite

Cellular and Wireless

  • Model A3447**
  • FDD-5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n29, n30, n66, n70, n71, n75)
  • TDD-5G NR (Bands n38, n40, n41, n48, n53, n77, n78, n79)
  • 5G NR mmWave (Bands n258, n260, n261)
  • FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71, 106)
  • TDD-LTE (Bands 34, 38, 39, 40, 41, 42, 48, 53)
  • UMTS/HSPA+ (850, 900, 1700/2100, 1900, 2100 MHz)
  • GSM/EDGE (850, 900, 1800, 1900 MHz)
  • Apple C2 cellular modem
  • 5G (sub-6 GHz and mmWave) with 4x4 MIMO
  • Gigabit LTE with 4x4 MIMO
  • Apple N1 wireless networking chip
  • Wi-Fi 7 (802.11be) with 2x2 MIMO
  • Bluetooth 6
  • Thread networking technology
  • Apple second-generation Ultra Wideband chip
  • NFC with reader mode
  • Express Cards with power reserve

Location

  • Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou, and NavIC)
  • Digital compass
  • Wi-Fi
  • Cellular
  • iBeacon microlocation

External Buttons and Connectors

column 2
  • Camera controls
  • Exposure, Depth, Zoom, Cameras, Styles, Tone

Charging and Expansion

  • USB-C connector with support for: Charging
  • DisplayPort
  • USB 3 (up to 10Gb/s)

MagSafe and Wireless Charging

  • MagSafe wireless charging up to 25W
  • Qi2 wireless charging up to 25W
  • Magnet array
  • Alignment magnet
  • Accessory Identification NFC
  • Magnetometer

Sensors

  • Touch ID fingerprint sensor
  • Barometer
  • High dynamic range gyro
  • High-g accelerometer
  • Proximity sensor
  • Four ambient light sensors

SIM Card

  • Dual eSIM (two active eSIMs
  • stores eight or more eSIMs)
  • iPhone Duo uses advanced eSIM technology for more convenience and security (not compatible with physical SIM cards).
  • Learn more about eSIM
  • Learn more about traveling with eSIM

Apple Pay

  • Pay with your iPhone using Touch ID in stores, within apps, and on the web
  • Send and receive money in Messages with Apple Cash
  • Complete purchases made with Apple Pay on your Mac
  • Pay for your ride using Express Transit
  • Learn more about Apple Pay
  • Learn more about Apple Cash

Apple Card

  • Credit card created by Apple, designed for iPhone
  • Get unlimited 3% Daily Cash at Apple and select merchants when you use Apple Pay, 2% with Apple Pay, and 1% everywhere else
  • Use the Wallet app to apply for, manage, and use Apple Card
  • Titanium, laser-etched physical credit card for use where Apple Pay is not accepted yet
  • Share with up to five people, 13 years or older, in your Family Sharing group to track expenses and manage spending
  • Learn more about Apple Card

Video Calling

  • FaceTime video calling over cellular or Wi-Fi
  • FaceTime HD (1080p) video calling over 5G or Wi-Fi
  • Center Stage for video calling
  • Duo FaceTime
  • SharePlay
  • Screen sharing
  • Portrait mode in FaceTime video
  • Spatial Audio
  • Voice Isolation and Wide Spectrum microphone modes
  • Zoom with rear-facing camera

Audio Calling

  • FaceTime audio
  • Voice over LTE (VoLTE)
  • Wi-Fi calling
  • SharePlay
  • Screen sharing
  • Spatial Audio
  • Voice Isolation and Wide Spectrum microphone modes

Audio Playback

  • Supported formats include AAC, APAC, MP3, Apple Lossless, FLAC, Dolby Digital, Dolby Digital Plus, and Dolby Atmos
  • Spatial Audio playback
  • User-configurable maximum volume limit

Video Playback

  • Supported formats include HEVC, H.264, and AV1
  • HDR with Dolby Vision, HDR10+/HDR10, and HLG
  • Up to 4K HDR AirPlay for mirroring, photos, and video out to Apple TV (2nd generation or later) or AirPlay-enabled smart TV
  • Video mirroring and video out support: Up to 4K HDR through native DisplayPort output over USB-C or USB-C Digital AV Adapter (model A2119
  • adapter sold separately)

Siri

  • Get help with everyday tasks like sending messages, setting reminders, and more
  • Activate hands-free with only your voice using “Siri” or “Hey Siri,” or use Type to Siri
  • Protected by the strongest privacy of any intelligent assistant
  • Powered by Apple Intelligence, Siri is more natural and helpful
  • Learn more about Siri

Operating System

  • iOS 27
  • iOS is the world’s most personal and secure mobile operating system, packed with powerful features and designed to protect your privacy.

Privacy

  • iPhone is built from the ground up to protect your personal information. Every iPhone has secure authentication. Apps need your permission to track your activity across other companies’ apps or websites. Your iMessages and FaceTime video calls are encrypted end-to-end. And much more.
  • Learn more about privacy features

Accessibility

  • Built-in accessibility features supporting vision, mobility, hearing, speech, and cognitive needs help you get the most out of your iPhone, in the ways that work best for you.
  • Features include: Assistive Access
  • VoiceOver
  • Zoom
  • Magnifier
  • Voice Control
  • Switch Control
  • AssistiveTouch
  • Eye Tracking
  • RTT and TTY support
  • Closed Captions
  • Live Captions
  • Personal Voice
  • Live Speech
  • Type to Siri
  • Vocal Shortcuts
  • Spoken Content

Built-in Apps

For a complete list of Apple apps available on iPhone, see apple.com/apps.

Rating for Hearing Aids

Hearing Aid Compatible

System Requirements

  • Apple Account (required for some features)
  • Internet access
  • Syncing to a Mac or PC requires: macOS Catalina 10.15 or later using the Finder
  • macOS High Sierra 10.13 through macOS Mojave 10.14.6 using iTunes 12.8 or later
  • Windows 10 or later using iTunes 12.12.10 or later (free download from apple.com/itunes/download)

Environmental Requirements

  • Operating ambient temperature: 32° to 95° F (0° to 35° C)
  • Nonoperating temperature: −4° to 113° F (−20° to 45° C)
  • Relative humidity: 5% to 95% noncondensing
  • Operating altitude: tested up to 10,000 feet (3000 m)

Languages

  • Language support
  • English (Australia, UK, U.S.), Chinese (Simplified, Traditional, Traditional, Hong Kong), French (Canada, France), German, Italian, Japanese, Korean, Spanish (Latin America, Spain), Arabic, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Finnish, Greek, Hebrew, Hindi, Hungarian, Indonesian, Kazakh, Malay, Norwegian, Polish, Portuguese (Brazil, Portugal), Romanian, Russian, Slovak, Swedish, Thai, Turkish, Ukrainian, Vietnamese
  • Learn more about feature availability

In the Box

  • iPhone with iOS 27
  • USB-C Charge Cable (1 m)

Unconfirmed

Rumours (unconfirmed)

Not from Apple. These are reports on other sites, listed by source name only. No spec on this page comes from them.

macrumors.comOct 11, 2026

Questions people ask

What are the iPhone Duo specs?

36 spec groups and 39 rows, copied from Apple's own spec page, read Oct 12, 2026. Nothing here comes from rumours.