DATA-DRIVEN PHONE COMPARE

iPhone 18 Pro Max vs iPhone Duo

59 source-backed differences · 8 fields the same. Official sources below.

✓Both records verified · latest Oct 18, 2026

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Comparing shared product base specs.

VS

Direct answer

iPhone 18 Pro Max has advantages in price, rear cameras, battery; the verified fields are otherwise comparable.

Top Differences

Prioritize what matters to you, then expand the full shared field set.

✓67 registry fields

Fresh ordinary price$1299 · 256GB → $1999 · 256GB
Telephoto mp48 → Unknown
HdrYes → Unknown
Outdoor brightness3,000 nits outdoor → Unknown
Fast chargeUp to 50% charge in around 15 minutes 9 when using 60W-capable adapter or higher with Adjustable Voltage Supply (available separately) paired with USB-C charging cable → Unknown

What Changed

Deterministic differences from the verified structured records.

Fresh ordinary priceiPhone 18 Pro Max

$1299 · 256GB compared with $1999 · 256GB

Telephoto mpDifferent, with no automatic winner

48 compared with Unknown

HdrDifferent, with no automatic winner

Yes compared with Unknown

Outdoor brightnessDifferent, with no automatic winner

3,000 nits outdoor compared with Unknown

Fast chargeDifferent, with no automatic winner

Up to 50% charge in around 15 minutes 9 when using 60W-capable adapter or higher with Adjustable Voltage Supply (available separately) paired with USB-C charging cable compared with Unknown

Full Comparison

Expand every verified field and inspect the complete side-by-side data.

✓67 registry fields

FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Telephoto mpMeaningful difference1 official source48UnknownNo universal winner; decide based on your use case.
Ultrawide apertureMarginal difference1 official sourcef/2.2UnknownNo universal winner; decide based on your use case.
Front cameraMinor difference2 official sources18 MP12 MPFront camera changes affect selfies and video calls.
ApertureMarginal difference1 official sourceƒ/1.9 apertureUnknownNo universal winner; decide based on your use case.
TypeMarginal difference1 official source18MP Center Stage cameraUnknownNo universal winner; decide based on your use case.
VideoMarginal difference1 official source4K Dolby Vision video recording at 24, 25, 30, or 60 fpsUnknownNo universal winner; decide based on your use case.
ApertureMarginal difference1 official sourcef/1.48, f/1.8, f/2.8, f/4.0 (variable, Fusion Main)UnknownNo universal winner; decide based on your use case.
ZoomMarginal difference2 official sources4x optical (8x optical-quality); up to 16x optical-quality zoom range2x optical-quality Telephoto; 4x optical-quality zoom range; digital zoom up to 10xNo universal winner; decide based on your use case.
VideoMarginal difference1 official source4K Dolby Vision video recording at 24 fps, 25 fps, 30 fps, 60 fps, 100 fps (Fusion Main), or 120 fps (Fusion Main)UnknownNo universal winner; decide based on your use case.
Video slow motionMarginal difference1 official source1080p up to 240 fps; 4K Dolby Vision up to 120 fps (Fusion Main)UnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Display sizeMinor difference2 official sources6.9 in7.6 inMore screen space changes reading and media comfort.
Outdoor brightnessMarginal difference1 official source3,000 nits outdoorUnknownHigher outdoor brightness improves sunlight readability.
Brightness peak nitsMarginal difference1 official sourceUnknown3000No universal winner; decide based on your use case.
HdrMeaningful difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
ProtectionMarginal difference1 official sourceCeramic Shield 2 front; anti-reflective coatingUnknownNo universal winner; decide based on your use case.
ResolutionMarginal difference2 official sources2868-by-1320-pixel resolution at 460 ppi1878 × 2670No universal winner; decide based on your use case.
TechnologyMarginal difference2 official sourcesSuper Retina XDR displaySuper Retina XDR OLED folding displayNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Video playbackMinor difference2 official sources45 hours44 hoursApple’s common playback test gives a comparable endurance signal.
Fast chargeMarginal difference1 official sourceUp to 50% charge in around 15 minutes 9 when using 60W-capable adapter or higher with Adjustable Voltage Supply (available separately) paired with USB-C charging cableUnknownShorter top-up time matters during travel and busy days.
Streamed video hoursMinor difference2 official sources4037No universal winner; decide based on your use case.
Typical use hoursMarginal difference1 official source30UnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
WeightMinor difference2 official sources249 g254 gWeight affects long sessions and one-handed comfort.
Depth mmMarginal difference2 official sources8.7511.3No universal winner; decide based on your use case.
Height mmMarginal difference2 official sources163.4117.8No universal winner; decide based on your use case.
Width mmMarginal difference2 official sources7884.1No universal winner; decide based on your use case.
Vapor chamberMarginal difference1 official sourceNext-generation vapor chamberUnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
U.S. SIMMarginal difference1 official sourceDual eSIM onlyUnknownSIM format determines carrier setup and travel flexibility.
EsimMarginal difference1 official sourceUnknownYesNo universal winner; decide based on your use case.
Physical simMarginal difference1 official sourceUnknownNoNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Dolby atmosMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
MicsMarginal difference1 official sourceFour studio-quality micsUnknownNo universal winner; decide based on your use case.
Spatial audioMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
SpeakersMarginal difference1 official sourceBuilt-in stereo speakerUnknownNo universal winner; decide based on your use case.
RatingMarginal difference2 official sourcesRated IP68 (maximum depth of 6 meters up to 30 minutes) under IEC standard 60529IP68No universal winner; decide based on your use case.
ColorsMarginal difference1 official sourceUnknownNight Sky, Star WhiteNo universal winner; decide based on your use case.
MaterialsMarginal difference1 official sourceUnknownTitanium foldable designNo universal winner; decide based on your use case.
Announced atMarginal difference1 official sourcedate: 2026-09-09 · precision: dayUnknownNo universal winner; decide based on your use case.
CompassMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
ListMarginal difference1 official sourceFace ID, LiDAR Scanner, Barometer, High dynamic range gyro, High-g accelerometer, Proximity sensor, Dual ambient light sensorsUnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Magsafe fast chargeMarginal difference1 official sourceUp to 50% charge in 30 minutes with 35W adapter or higherUnknownNo universal winner; decide based on your use case.
Magsafe wMarginal difference1 official source25UnknownNo universal winner; decide based on your use case.
Qi2 wMarginal difference1 official source25UnknownNo universal winner; decide based on your use case.
Usb pdMarginal difference1 official sourceUSB PD 3.1 (or better) with Adjustable Voltage Supply (AVS)UnknownNo universal winner; decide based on your use case.
Wireless max wMarginal difference1 official sourceUnknown25No universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Cpu coresMarginal difference1 official source6UnknownNo universal winner; decide based on your use case.
Gpu coresMarginal difference1 official source7UnknownNo universal winner; decide based on your use case.
Neural engine coresMarginal difference1 official source16UnknownNo universal winner; decide based on your use case.
Process nmMarginal difference1 official source2UnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
CellularMarginal difference2 official sources5G (sub-6 GHz and mmWave) with 4x4 MIMO5G sub-6 GHz and mmWaveNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Model lineMarginal difference1 official sourceApple N1 wireless networking chipUnknownNo universal winner; decide based on your use case.
NfcMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
PositioningMarginal difference1 official sourcePrecision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou, and NavIC)UnknownNo universal winner; decide based on your use case.
ThreadMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
UwbMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
WifiMarginal difference2 official sourcesWi-Fi 7 (802.11be)Wi-Fi 7No universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Display portMarginal difference1 official sourceYesUnknownNo universal winner; decide based on your use case.
Usb speedMarginal difference1 official sourceUSB 3 (up to 10Gb/s)UnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
OsMarginal difference1 official sourceiOS 27UnknownNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Fresh ordinary priceMajor difference2 official sources$1299 · 256GB$1999 · 256GBOrdinary unlocked prices avoid presenting carrier-dependent discounts as universal.

What’s the same

Refresh rate120 Hz
ChipA20 Pro
Main camera48 MP
Ultra Wide camera48 MP
Storage options256 GB, 512 GB, 1024 GB, 2048 GB
BluetoothBluetooth 6
ConnectorUSB-C
ReleaseYear2026

Which should you buy?

iPhone 18 Pro Max leads in Price, Camera, Battery and Design; the two are otherwise comparable.

CHOOSE IPHONE 18 PRO MAX
  • Choose iPhone 18 Pro Max if you prioritize price, camera, battery and design.
CHOOSE IPHONE DUO

    Category-by-category

    PRICE · iPhone 18 Pro Max

    Leads in price.

    REAR CAMERAS · iPhone 18 Pro Max

    Leads in camera.

    BATTERY · iPhone 18 Pro Max

    Leads in battery.

    DESIGN & DIMENSIONS · iPhone 18 Pro Max

    Leads in design.

    DISPLAY · Comparable

    Comparable across display.

    REGIONAL VARIANTS · Comparable

    Comparable across regional.

    OTHER · Comparable

    Comparable across other.

    CHARGING · Comparable

    Comparable across charging.

    PERFORMANCE · Comparable

    Comparable across performance.

    CELLULAR · Comparable

    Comparable across cellular.

    CONNECTIVITY · Comparable

    Comparable across connectivity.

    PORTS · Comparable

    Comparable across ports.

    SOFTWARE · Comparable

    Comparable across software.

    FIELD-LEVEL PROVENANCE

    5 official sources

    Every compared field traces to an official product source. No model-generated specs, prices or winners.

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