
Chapter 1
The engineering of the fold
Chapter 2
The multitasking playground
Chapter 3
The weight of the compromise
Chapter 4
The durability debate
Ch 3 · The weight of the compromise
sonia iPhone Duo Inner Screen
Unfold that giant inner screen and watch the battery drain away.

sonia Weighing 254 grams, this device is heavier than the iPhone 18 Pro Max, balancing dual-screen utility against daily portability.

sonia Removing the face scanner for a side power-button sensor disappointed many longtime users

BETA
sonia Fit the bulky phone into tight pockets to learn why iPhone Duo reviews are divided.
Fun Fact
Thinnest open: When fully unfolded, the iPhone Duo is only 5.2 millimeters thick, making it one of the thinnest iOS devices ever made.
Glossary
portability (noun)
The quality of being light and easy to carry or move. The bulky size of the folded Apple iPhone Duo has sparked user concerns regarding its daily pocketability.
The quality of being light and easy to carry or move. The bulky size of the folded Apple iPhone Duo has sparked user concerns regarding its daily pocketability.
Quiz
Which camera lens is missing from the iPhone Duo's rear camera array compared to the iPhone 18 Pro?
Quiz
How many hours of video playback does the outer display offer compared to the inner display?
