Video compares iPhone Duo and iPhone 18 Pro Max sizes

A side-by-side video shows how the folding iPhone Duo compares in size to iPhone 18 Pro Max. Unfolded, the Duo's 6.48-inch width nearly matches the 6.43-inch height of the 18 Pro Max, while its 4.64-inch height is far roomier than the flagship's 3.07-inch width.

• iPhone Duo unfolded is 6.48 inches wide vs 6.43 inches tall for the 18 Pro Max
• Duo height is 4.64 inches; iPhone 18 Pro Max width is 3.07 inches
• The Duo folds for compact carrying and one-handed use
• iPhone Duo has the largest display ever in an iPhone