iPhone Duo (folded) vs iPhone Duo (unfolded)
80.5 mm wider, the same height and 6.10 mm thinner.
Quick answer
iPhone Duo (folded) and iPhone Duo (unfolded) represent the two physical formats of the same hardware, both weighing 254 g. iPhone Duo (folded) stands 117.8 mm tall, measures 84.1 mm wide, and is 11.3 mm thick, providing a 5.4 in outer screen that enables one-handed thumb reach for an average adult hand. Opening the device into iPhone Duo (unfolded) expands the width to 164.6 mm, slims the profile down to 5.2 mm, and delivers a 7.6 in tablet display requiring two hands. Neither format fits into median men's or women's jeans pockets. The closed state delivers 44 h of video playback, whereas the unfolded state yields 31 h. Both versions cost 1999 USD.
- iPhone Duo (unfolded) widens the display to 7.6 in, while iPhone Duo (folded) uses 5.4 in.
- Both configurations share the same 254 g weight and identical 117.8 mm height.
- At 11.3 mm folded versus 5.2 mm unfolded, thickness changes by more than half.
- Neither iPhone Duo (folded) nor iPhone Duo (unfolded) fits median men's or women's jeans pockets.
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 (folded): 117.8 by 84.1 by 11.3 millimetres, 254 grams. iPhone Duo (unfolded): 117.8 by 164.6 by 5.2 millimetres, 254 grams.
Duo, Duo open shown at 2.8 pixels per millimetre.
Height: Duo 117.8 millimetres, Duo open 117.8 millimetres.Height: Duo 4.64 inches, Duo open 4.64 inches.Width: Duo 84.1 millimetres, Duo open 164.6 millimetres.Width: Duo 3.31 inches, Duo open 6.48 inches.Depth: Duo 11.30 millimetres, Duo open 5.20 millimetres.Depth: Duo 0.44 inches, Duo open 0.20 inches.Weight: Duo 254 grams, Duo open 254 grams.Weight: Duo 8.96 ounces, Duo open 8.96 ounces.
Specifications
| Specification | Duo | Duo open |
|---|---|---|
| Height | 117.8 millimetres4.64 inches | 117.8 millimetres, the same4.64 inches, the same |
| Width | 84.1 millimetres3.31 inches | 164.6 millimetres, 80.5 millimetres more6.48 inches, 3.17 inches more |
| Depth | 11.30 millimetres0.44 inches | 5.20 millimetres, 6.10 millimetres less0.20 inches, 0.24 inches less |
| Weight | 254 grams8.96 ounces | 254 grams, the same8.96 ounces, the same |
| Volume | 111.9 cubic centimetres6.83 cubic inches | 100.8 cubic centimetres, 11.1 cubic centimetres less6.15 cubic inches, 0.68 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent | 90 percent, 2 percent more |
| Display size — Screen size is always quoted in inches. | 5.4 inches | 7.6 inches, 2.2 inches more |
| Resolution | 1398 × 2034 | 1878 × 2670 |
| Pixel density | 457 pixels per inch | 430 pixels per inch, 28 pixels per inch less |
| Cutout | Dynamic Island | None |
| 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. | 44 hrs | 31 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 (folded)
Questions about these phones
How do the dimensions of iPhone Duo (folded) compare to iPhone Duo (unfolded)?
iPhone Duo (folded) measures 117.8 mm by 84.1 mm with an 11.3 mm depth. iPhone Duo (unfolded) keeps the same 117.8 mm height but expands to 164.6 mm wide and thins to 5.2 mm.
Is iPhone Duo (unfolded) heavier than iPhone Duo (folded)?
No, iPhone Duo (folded) and iPhone Duo (unfolded) have the identical weight of 254 g.
What is the screen size difference between iPhone Duo (folded) and iPhone Duo (unfolded)?
iPhone Duo (folded) features a 5.4 in cover display, whereas iPhone Duo (unfolded) opens to a 7.6 in interior screen.
Can an average adult hand use iPhone Duo (unfolded) with one hand?
An average adult hand cannot reach across the 164.6 mm width of iPhone Duo (unfolded) with one hand. For one-handed tasks, iPhone Duo (folded) offers an 84.1 mm width and 5.4 in screen.
Does iPhone Duo (folded) or iPhone Duo (unfolded) fit into jeans pockets?
Neither iPhone Duo (folded) nor iPhone Duo (unfolded) fits inside median men's or women's jeans pockets.
How does battery life compare between iPhone Duo (folded) and iPhone Duo (unfolded)?
iPhone Duo (folded) provides 44 h of video playback using its outer screen, while iPhone Duo (unfolded) provides 31 h of video playback using the larger display.