Device compare

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 9 specs differ highlighted rows = specs that differ Only differences

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

What actually differs

Display: iPhone 18 Pro Max — 6.9" OLED 120Hz ｜ iPhone Duo — 7.6" foldable inner + 5.4" outer, 120Hz
Battery: 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+

6 of 9 rows differ. Launch prices shown per market.