iPhone 18 Pro vs iPhone Duo (unfolded)
92.7 mm wider, 32.2 mm shorter and 43 g heavier.
Quick answer
iPhone 18 Pro provides a conventional handheld experience, measuring 150 mm tall and 71.9 mm wide with a 6.3 in screen. iPhone Duo (unfolded) opens into a 7.6 in display, spreading 164.6 mm wide and standing 117.8 mm tall. At 5.2 mm, iPhone Duo (unfolded) is thinner than the 8.75 mm iPhone 18 Pro, but iPhone Duo (unfolded) weighs 254 g compared to 211 g for iPhone 18 Pro. In measured jeans pockets, iPhone 18 Pro fits men's pockets, whereas iPhone Duo (unfolded) does not fit men's or women's pockets. For single-handed typing or pocket carry, iPhone 18 Pro remains practical, while iPhone Duo (unfolded) functions as a two-handed canvas for reading and multitasking at a 1999 USD price versus 1199 USD.
- iPhone Duo (unfolded) requires two hands, whereas an average adult hand can manage iPhone 18 Pro.
- iPhone 18 Pro fits men's jeans pockets, while iPhone Duo (unfolded) cannot fit standard jeans pockets.
- The 254 g weight of iPhone Duo (unfolded) creates noticeable downward pull in jacket pockets.
TRUE SCALE · 1.2 PX/MM
TRUE SCALE · 2.2 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone 18 Pro: 150 by 71.9 by 8.75 millimetres, 211 grams. iPhone Duo (unfolded): 117.8 by 164.6 by 5.2 millimetres, 254 grams.
18 Pro, Duo open shown at 2.2 pixels per millimetre.
Height: 18 Pro 150.0 millimetres, Duo open 117.8 millimetres.Height: 18 Pro 5.91 inches, Duo open 4.64 inches.Width: 18 Pro 71.9 millimetres, Duo open 164.6 millimetres.Width: 18 Pro 2.83 inches, Duo open 6.48 inches.Depth: 18 Pro 8.75 millimetres, Duo open 5.20 millimetres.Depth: 18 Pro 0.34 inches, Duo open 0.20 inches.Weight: 18 Pro 211 grams, Duo open 254 grams.Weight: 18 Pro 7.44 ounces, Duo open 8.96 ounces.
Specifications
| Specification | 18 Pro | Duo open |
|---|---|---|
| Height | 150.0 millimetres5.91 inches | 117.8 millimetres, 32.2 millimetres less4.64 inches, 1.27 inches less |
| Width | 71.9 millimetres2.83 inches | 164.6 millimetres, 92.7 millimetres more6.48 inches, 3.65 inches more |
| Depth | 8.75 millimetres0.34 inches | 5.20 millimetres, 3.55 millimetres less0.20 inches, 0.14 inches less |
| Weight | 211 grams7.44 ounces | 254 grams, 43 grams more8.96 ounces, 1.52 ounces more |
| Volume | 94.4 cubic centimetres5.76 cubic inches | 100.8 cubic centimetres, 6.5 cubic centimetres more6.15 cubic inches, 0.39 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent | 90 percent, 1 percent more |
| Display size — Screen size is always quoted in inches. | 6.3 inches | 7.6 inches, 1.3 inches more |
| Resolution | 1206 × 2622 | 1878 × 2670 |
| Pixel density | 458 pixels per inch | 430 pixels per inch, 29 pixels per inch less |
| Cutout | Dynamic Island | None |
| Rear main | 48MP Fusion, variable aperture f/1.48-f/4.0 | 48MP Fusion f/1.6 |
| Rear ultra-wide | 48MP Fusion f/2.2 | 48MP Ultra Wide f/2.2 |
| Rear telephoto | 48MP Fusion 100mm (4x optical, 8x optical-quality) | — |
| Front camera | 18MP Center Stage f/1.9 | 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. | 36 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. | 1,199 dollars | 1,999 dollars, 800 dollars more |
| Released | Sep 2026 | Oct 2026 |
| Status | Current | Current |
Also compared with iPhone 18 Pro
Questions about these phones
How do the dimensions of iPhone 18 Pro compare to iPhone Duo (unfolded)?
iPhone 18 Pro measures 150 mm tall, 71.9 mm wide, and 8.75 mm deep. iPhone Duo (unfolded) measures 117.8 mm tall, 164.6 mm wide, and 5.2 mm deep.
How much heavier is iPhone Duo (unfolded) than iPhone 18 Pro?
iPhone Duo (unfolded) weighs 254 g, which is 43 g heavier than the 211 g iPhone 18 Pro.
Which phone has the better screen for reading?
iPhone Duo (unfolded) features a 7.6 in display with 429.5157680619542 ppi for expansive reading. iPhone 18 Pro provides a sharper 6.3 in screen with 458.1041480174994 ppi.
Can iPhone Duo (unfolded) be used with one hand like iPhone 18 Pro?
iPhone Duo (unfolded) spans 164.6 mm in width and requires two hands for an average adult hand. iPhone 18 Pro measures 71.9 mm wide, making one-handed navigation manageable.
Does iPhone Duo (unfolded) fit into jeans pockets?
iPhone Duo (unfolded) does not fit into standard men's or women's jeans pockets when unfolded. iPhone 18 Pro fits into men's jeans pockets, but does not fit women's pockets.
Is iPhone Duo (unfolded) worth choosing over iPhone 18 Pro for size alone?
iPhone Duo (unfolded) at 1999 USD is worth considering if tablet-style multitasking is needed. For standard pocket carry and one-handed use, iPhone 18 Pro at 1199 USD remains the practical choice.