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Apple iPhone 13 Pro Max vs Apple iPhone Duo

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

AppleiPhone 13 Pro MaxAppleiPhone Duo
Overview
ReleasedSeptember 2021Coming 23 October 2026
Display
Screen size6.7″7.6″
Resolution2778 × 12842670 × 1878
Sharpness457 pixels per inch430 pixels per inch
PanelOLEDLTPO OLED
Refresh rate120 Hz120 Hz
Peak brightness1,200 nits3,000 nits
Cover screen–5.4″, 2034 × 1398, 120 Hz
Display typeSuper Retina XDR display with ProMotion; 6.7-inch (diagonal) all-screen OLED display with a notch; 6.68 inches measured as a standard rectangleSuper Retina XDR OLED folding display (inner) with nano-texture finish and wide-angle OLEDs; Dynamic Island on both displays
Pixel density458 ppi430 ppi (inner); 460 ppi (outer)
Brightness detail1,000 nits max (typical); 1,200 nits max (HDR)Both displays 1,000 nits max (typical); 1,600 nits peak (HDR); 3,000 nits peak (outdoor); 1 nit minimum
Always-on displayNoYes
Screen protectionCeramic Shield front; fingerprint-resistant oleophobic coatingCeramic 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 featuresProMotion with adaptive refresh rates from 10Hz to 120Hz; HDR; True Tone; wide colour (P3); Haptic Touch; 2,000,000:1 contrast ratio (typical)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
ChipA15 BionicA20 Pro
Memory6 GB–
Storage128 GB, 256 GB, 512 GB, 1 TB256 GB, 512 GB, 1 TB, 2 TB
CPU6-core CPU with 2 performance and 4 efficiency cores; 6 GB of RAM (GSMArena)6-core CPU with 2 super cores and 4 efficiency cores; 2-nanometre process
GPU5-core GPU7-core GPU with Neural Accelerators; hardware-accelerated ray tracing
AI engine16-core Neural EngineDual 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 camera12 MP48 MP
Ultra wide camera12 MP48 MP
Telephoto camera12 MPNone
Optical zoom3×None
Front camera12 MP12 MP
Main camera12MP Wide, ƒ/1.5 aperture, sensor-shift optical image stabilisation, seven-element lens, 100% Focus Pixels48MP Fusion Main, 26 mm, ƒ/1.6 aperture, sensor-shift optical image stabilisation, Hybrid Focus Pixels; 24MP and 48MP photos
Ultra wide camera12MP Ultra Wide, ƒ/1.8 aperture, 120° field of view, six-element lens, macro photography48MP Fusion Ultra Wide, 13 mm, ƒ/2.2 aperture, 120° field of view, Hybrid Focus Pixels; 24MP and 48MP photos
Telephoto camera12MP Telephoto, ƒ/2.8 aperture, optical image stabilisation, six-element lens, 3x optical zoom–
Front camera12MP TrueDepth camera, ƒ/2.2 aperture12MP 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)
Zoom3x optical zoom in, 2x optical zoom out; 6x optical zoom range; digital zoom up to 15x (photos) and 9x (video)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 recordingCinematic mode (1080p at 30 fps); HDR video with Dolby Vision up to 4K at 60 fps; 4K at 24, 25, 30 or 60 fps; 1080p at 25, 30 or 60 fps; ProRes up to 4K at 30 fps (1080p at 30 fps on 128GB); macro video; slo-mo 1080p at 120 or 240 fps; Night mode Time-lapse; HEVC, H.264 and ProRes4K 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 videoCinematic mode (1080p at 30 fps); HDR video with Dolby Vision up to 4K at 60 fps; ProRes up to 4K at 30 fps; slo-mo 1080p at 120 fpsOuter 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 featuresLiDAR Scanner with Night mode portraits; Night mode; Deep Fusion; Smart HDR 4; Photographic Styles; macro photography; Apple ProRAW; Portrait mode with Depth Control; Portrait Lighting with six effects; sapphire crystal lens coverSmart 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
Battery4,352 mAh–
Video playback (maker's claim)Up to 28 hoursUp to 31 hours
Wireless chargingUp to 15 WUp to 25 W
Battery life detailLasts up to 2.5 hours longer than iPhone 12 Pro Max; video playback up to 28 hours (25 hours streamed); audio playback up to 95 hours; 4,352 mAh, 16.75 Wh (GSMArena)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 chargingUp to 50% in around 30 minutes with a 20W adapter or higher (available separately)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 chargingMagSafe up to 15W; Qi up to 7.5WMagSafe and Qi2 up to 25W; up to 50% in around 30 minutes with a 35W adapter or higher and a MagSafe Charger
Connectivity
Satellite messagingNoYes
Mobile network5G (sub-6 GHz and mmWave) with 4x4 MIMO; Gigabit LTE with 4x4 MIMO and LAAApple C2 modem; 5G (sub-6GHz) with 4x4 MIMO; Gigabit LTE with 4x4 MIMO; UK model A3720 (US model A3447 adds mmWave)
SIMDual SIM (nano-SIM and eSIM); Dual eSIM supportDual eSIM only (two active, eight or more stored); no physical SIM
Wi-FiWi-Fi 6 (802.11ax) with 2x2 MIMOWi-Fi 7 (802.11be) with 2x2 MIMO; Apple N1 wireless networking chip
BluetoothBluetooth 5.0Bluetooth 6; Thread
Ultra WidebandUltra Wideband chip for spatial awarenessApple second-generation Ultra Wideband chip
NFCNFC with reader mode; Express Cards with power reserveNFC 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
USBLightning connector; video mirroring and video out up to 1080p through the Lightning Digital AV Adapter and Lightning to VGA Adapter (sold separately)USB-C with charging, DisplayPort and USB 3 (up to 10Gb/s); video out up to 4K HDR
PositioningGPS, GLONASS, Galileo, QZSS and BeiDou; digital compass; iBeacon micro-locationPrecision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou and NavIC); digital compass; iBeacon micro-location
Design
TypeStandardFoldable
Weight240 g254 g
Thickness7.65 mm11.3 mm
Height × width160.8 × 78.1 mm117.8 × 84.1 mm
Water and dust resistanceIP68IP68
Stylus–Yes
Size unfolded–117.8 × 164.6 × 5.2 mm (height × width × thickness)
MaterialsCeramic Shield front, textured matte glass back and surgical-grade stainless steel bandGrade 5 titanium enclosure with a mirror-polished finish (85% recycled titanium); 3D-printed titanium hinge cover with a micro-blasted finish; Ceramic Shield back
ColoursGraphite, Gold, Silver, Sierra Blue, Alpine GreenStar White, Night Sky
ButtonsSide button; volume buttons; Ring/Silent switchSide button with Touch ID; Camera Control; volume up/down; no Action button
Water resistance detailIP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529IP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529
BiometricsFace IDTouch ID fingerprint sensor in the side button
SensorsFace ID; LiDAR Scanner; barometer; three-axis gyro; accelerometer; proximity sensor; ambient light sensorTouch 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 systemiOSiOS
Software at launchiOS 15iOS 27.1 (Apple's press release; the spec page lists iOS 27)
AI featuresApple Intelligence not supportedApple 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

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