iPhone Duo (unfolded) vs iPhone Duo (folded)
80.5 mm narrower, the same height and 6.10 mm thicker.
Quick answer
iPhone Duo (unfolded) and iPhone Duo (folded) share the same 254 g weight, 117.8 mm height, and 1999 USD launch price, but offer vastly different handling modes. iPhone Duo (folded) measures 84.1 mm wide and 11.3 mm thick, providing a 5.4-inch display that runs up to 44 hours of video playback. Opening to iPhone Duo (unfolded) creates an expansive 7.6-inch screen with a slim 5.2 mm depth and a broad 164.6 mm width, reducing video playback to 31 hours. In daily use, neither format fits into median men's or women's jeans pockets. The folded format suits quick tasks on the move, while the unfolded format requires both hands for reading.
- iPhone Duo (unfolded) expands the display to 7.6 inches for tablet-style reading and multitasking.
- iPhone Duo (folded) narrows the width to 84.1 mm for easier single-handed handling.
- Both states weigh 254 g and do not fit median men's or women's pockets.
- iPhone Duo (folded) lasts up to 44 hours of video playback versus 31 hours unfolded.
TRUE SCALE · 1.2 PX/MM
TRUE SCALE · 2.8 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone Duo (unfolded): 117.8 by 164.6 by 5.2 millimetres, 254 grams. iPhone Duo (folded): 117.8 by 84.1 by 11.3 millimetres, 254 grams.
Duo open, Duo shown at 2.8 pixels per millimetre.
Height: Duo open 117.8 millimetres, Duo 117.8 millimetres.Height: Duo open 4.64 inches, Duo 4.64 inches.Width: Duo open 164.6 millimetres, Duo 84.1 millimetres.Width: Duo open 6.48 inches, Duo 3.31 inches.Depth: Duo open 5.20 millimetres, Duo 11.30 millimetres.Depth: Duo open 0.20 inches, Duo 0.44 inches.Weight: Duo open 254 grams, Duo 254 grams.Weight: Duo open 8.96 ounces, Duo 8.96 ounces.
Specifications
| Specification | Duo open | Duo |
|---|---|---|
| Height | 117.8 millimetres4.64 inches | 117.8 millimetres, the same4.64 inches, the same |
| Width | 164.6 millimetres6.48 inches | 84.1 millimetres, 80.5 millimetres less3.31 inches, 3.17 inches less |
| Depth | 5.20 millimetres0.20 inches | 11.30 millimetres, 6.10 millimetres more0.44 inches, 0.24 inches more |
| Weight | 254 grams8.96 ounces | 254 grams, the same8.96 ounces, the same |
| Volume | 100.8 cubic centimetres6.15 cubic inches | 111.9 cubic centimetres, 11.1 cubic centimetres more6.83 cubic inches, 0.68 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 90 percent | 89 percent, 2 percent less |
| Display size — Screen size is always quoted in inches. | 7.6 inches | 5.4 inches, 2.2 inches less |
| Resolution | 1878 × 2670 | 1398 × 2034 |
| Pixel density | 430 pixels per inch | 457 pixels per inch, 28 pixels per inch more |
| Cutout | None | Dynamic Island |
| Rear main | 48MP Fusion f/1.6 | 48MP Fusion f/1.6 |
| Rear ultra-wide | 48MP Ultra Wide f/2.2 | 48MP Ultra Wide f/2.2 |
| Rear telephoto | — | — |
| Front camera | 12MP Center Stage f/2.2 (outer), under-display FaceTime f/1.8 (inner) | 12MP Center Stage f/2.2 (outer), under-display FaceTime f/1.8 (inner) |
| Chip | A20 Pro | A20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 31 hrs | 44 hrs |
| Port | USB-C | USB-C |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem |
| Water resistance | IP68 (6m for 30 min) | IP68 (6m for 30 min) |
| Storage | 256 GB – 2 TB | 256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 1,999 dollars | 1,999 dollars, the same |
| Released | Oct 2026 | Oct 2026 |
| Status | Current | Current |
Also compared with iPhone Duo (unfolded)
Questions about these phones
What is the size difference between iPhone Duo (unfolded) and iPhone Duo (folded)?
Both share a height of 117.8 mm, but iPhone Duo (unfolded) has a width of 164.6 mm and a depth of 5.2 mm, while iPhone Duo (folded) has a width of 84.1 mm and a depth of 11.3 mm.
Does iPhone Duo (unfolded) weigh more than iPhone Duo (folded)?
iPhone Duo (unfolded) and iPhone Duo (folded) weigh the same at 254 g.
How do the screen sizes compare between iPhone Duo (unfolded) and iPhone Duo (folded)?
iPhone Duo (unfolded) provides a 7.6-inch display, whereas iPhone Duo (folded) offers a 5.4-inch display.
Can you use iPhone Duo (unfolded) with one hand?
iPhone Duo (unfolded) requires both hands due to its 164.6 mm width, whereas iPhone Duo (folded) is narrower at 84.1 mm for single-handed grip.
Does iPhone Duo (folded) fit in a pocket better than iPhone Duo (unfolded)?
While iPhone Duo (folded) is narrower at 84.1 mm compared to 164.6 mm unfolded, neither format fits into median men's or women's jeans pockets.
How does battery life compare between iPhone Duo (unfolded) and iPhone Duo (folded)?
iPhone Duo (folded) provides up to 44 hours of video playback, compared to 31 hours on iPhone Duo (unfolded).