PHONE AiPhone 18 Pro Max
No fresh verified price
Full specs →DATA-DRIVEN PHONE COMPARE
iPhone 18 Pro Max vs iPhone Duo
16 source-backed differences · 8 fields the same. Official sources below.
✓Both records verified · latest Sep 9, 2026
Comparing shared product base specs.
PHONE A
PHONE BiPhone Duo
No fresh verified price
Full specs →Direct answer
iPhone 18 Pro Max has advantages in rear cameras, design & dimensions, battery; the verified fields are otherwise comparable.
Top Differences
Prioritize what matters to you, then expand the full shared field set.
✓31 registry fields
What Changed
Deterministic differences from the verified structured records.
48 compared with Unknown
8.75 compared with 11.3
163.4 compared with 117.8
78 compared with 84.1
Variable ƒ/1.48-ƒ/4.0 compared with Unknown
Full Comparison
Expand every verified field and inspect the complete side-by-side data.
✓31 registry fields
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Telephoto mpMeaningful difference1 official source48UnknownNo universal winner; decide based on your use case.
Front cameraMinor difference2 official sources18 MP12 MPFront camera changes affect selfies and video calls.
Main apertureMarginal difference1 official sourceVariable ƒ/1.48-ƒ/4.0UnknownNo universal winner; decide based on your use case.
ZoomMarginal difference2 official sources4x optical-quality Telephoto; 8x optical-quality zoom; digital zoom up to 40x2x optical-quality Telephoto; 4x optical-quality zoom range; digital zoom up to 10xNo 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.
ResolutionMarginal difference2 official sources2868 × 13201878 × 2670No universal winner; decide based on your use case.
TechnologyMarginal difference2 official sourcesSuper Retina XDR OLEDSuper 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.
Streamed video hoursMinor difference2 official sources4037No 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.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
ColorsMarginal difference2 official sourcesBlack, Silver, Glacier, BurgundyNight Sky, Star WhiteNo universal winner; decide based on your use case.
MaterialsMarginal difference2 official sourcesAluminum unibody designTitanium foldable designNo universal winner; decide based on your use case.
FieldiPhone 18 Pro MaxiPhone DuoWhy it matters
Usb speedMarginal difference1 official sourceUSB 3 (up to 10Gb/s)UnknownNo universal winner; decide based on your use case.
What’s the same
Which should you buy?
iPhone 18 Pro Max leads in Camera, Design and Battery; the two are otherwise comparable.
- Choose iPhone 18 Pro Max if you prioritize camera, design and battery.
Category-by-category
Leads in camera.
Leads in design.
Leads in battery.
Comparable across display.
Comparable across other.
Comparable across ports.
FIELD-LEVEL PROVENANCE
2 official sources
Every compared field traces to an official product source. No model-generated specs, prices or winners.