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Spec comparison

iPhone 18 Pro Max vs iPhone Duo

iPhone 18 Pro Max vs iPhone Duo — every spec row side by side; launch prices shown per market, not converted.

6 of 10 specs differ Phone highlighted rows = specs that differ

Spec table

Spec iPhone 18 Pro Max Apple (US) · verified 2026-10-13 iPhone Duo Apple (US) · verified 2026-10-13
Display 6.9" OLED 120Hz src 7.6" foldable inner + 5.4" outer, 120Hz src
Chip A20 Pro src A20 Pro src
RAM 12GB src 12GB src
Storage 256GB+ src 256GB+ src
Battery capacity — —
Rated battery life Up to 43 hrs video src Up to 44 hrs video (outer screen) src leads
Rear camera 48MP variable-aperture main + 48MP UW + 48MP tele src 48MP main + 48MP UW src
Weight 249 g src leads 254 g src
US launch price $1,299+ src leads $1,999+ src
China launch price ¥10,999+ src leads ¥15,999+ src

Battery rows are never converted across units or test protocols - mismatches are marked n/a. Prices are launch MSRP per market, not exchange-rate math. Specs verified against manufacturer pages on 2026-10-13; cells missing a source are marked to be verified.

What it means for you

iPhone 18 Pro Max

  • Weight 249 g vs 254 g

iPhone Duo

  • Rated battery life Up to 44 hrs video (outer screen) vs Up to 43 hrs video

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Raw diff

  • Display: iPhone 18 Pro Max — 6.9" OLED 120Hz ｜ iPhone Duo — 7.6" foldable inner + 5.4" outer, 120Hz
  • Rated battery life: iPhone 18 Pro Max — Up to 43 hrs video ｜ iPhone Duo — Up to 44 hrs video (outer screen)
  • Rear camera: iPhone 18 Pro Max — 48MP variable-aperture main + 48MP UW + 48MP tele ｜ iPhone Duo — 48MP main + 48MP UW
  • Weight: iPhone 18 Pro Max — 249 g ｜ iPhone Duo — 254 g
  • US launch price: iPhone 18 Pro Max — $1,299+ ｜ iPhone Duo — $1,999+
  • China launch price: iPhone 18 Pro Max — ¥10,999+ ｜ iPhone Duo — ¥15,999+