iPhone Duo vs iPhone 17 Pro
Quick answer
The iPhone 17 Pro is 12.2 millimetres0.48 inches narrower and 32.2 millimetres1.27 inches taller than the iPhone Duo.
The iPhone 17 Pro is 92.7 millimetres3.65 inches narrower and 32.2 millimetres1.27 inches taller than the iPhone Duo.
The iPhone Duo from Apple is a fresh foldable that stands shorter in the hand when closed. The iPhone 17 Pro on Amazon (paid link) is a classic slab that slips into jeans pockets and sells renewed for far less. Hold for the hinge if you want it; otherwise the 17 Pro is the steady choice.
Paid link.
Easier one-handed: Unclear
Pocket: iPhone 17 Pro
Weight difference: Noticeable
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 Duo: 117.8 by 84.1 by 11.3 millimetres, 254 grams. iPhone 17 Pro: 150 by 71.9 by 8.75 millimetres, 206 grams.iPhone Duo: 117.8 by 164.6 by 5.2 millimetres, 254 grams. iPhone 17 Pro: 150 by 71.9 by 8.75 millimetres, 206 grams.
Duo, 17 Pro shown at 2.2 pixels per millimetre.
iPhone DuoiPhone Duo
from $1,999 at launch, ships 23 October.
See on AppleiPhone 17 Pro
from $1,099 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
Height: Duo 117.8 millimetres, 17 Pro 150.0 millimetres.Height: Duo 4.64 inches, 17 Pro 5.91 inches.Width: Duo 84.1 millimetres, 17 Pro 71.9 millimetres.Width: Duo 3.31 inches, 17 Pro 2.83 inches.Depth: Duo 11.30 millimetres, 17 Pro 8.75 millimetres.Depth: Duo 0.44 inches, 17 Pro 0.34 inches.Weight: Duo 254 grams, 17 Pro 206 grams.Weight: Duo 8.96 ounces, 17 Pro 7.27 ounces.
Height: Duo 117.8 millimetres, 17 Pro 150.0 millimetres.Height: Duo 4.64 inches, 17 Pro 5.91 inches.Width: Duo 164.6 millimetres, 17 Pro 71.9 millimetres.Width: Duo 6.48 inches, 17 Pro 2.83 inches.Depth: Duo 5.20 millimetres, 17 Pro 8.75 millimetres.Depth: Duo 0.20 inches, 17 Pro 0.34 inches.Weight: Duo 254 grams, 17 Pro 206 grams.Weight: Duo 8.96 ounces, 17 Pro 7.27 ounces.
Specifications
| Specification | Duo | 17 Pro |
|---|---|---|
| Height | 117.8 millimetres4.64 inches117.8 millimetres4.64 inches | 150.0 millimetres, 32.2 millimetres more5.91 inches, 1.27 inches more150.0 millimetres, 32.2 millimetres more5.91 inches, 1.27 inches more |
| Height, open | 117.8 millimetres4.64 inches | — |
| Height, closed | 117.8 millimetres4.64 inches | — |
| Width | 84.1 millimetres3.31 inches164.6 millimetres6.48 inches | 71.9 millimetres, 12.2 millimetres less2.83 inches, 0.48 inches less71.9 millimetres, 92.7 millimetres less2.83 inches, 3.65 inches less |
| Width, open | 164.6 millimetres6.48 inches | — |
| Width, closed | 84.1 millimetres3.31 inches | — |
| Depth | 11.30 millimetres0.44 inches5.20 millimetres0.20 inches | 8.75 millimetres, 2.55 millimetres less0.34 inches, 0.10 inches less8.75 millimetres, 3.55 millimetres more0.34 inches, 0.14 inches more |
| Depth, open | 5.20 millimetres0.20 inches | — |
| Depth, closed | 11.30 millimetres0.44 inches | — |
| Weight | 254 grams8.96 ounces254 grams8.96 ounces | 206 grams, 48 grams less7.27 ounces, 1.69 ounces less206 grams, 48 grams less7.27 ounces, 1.69 ounces less |
| Volume | 111.9 cubic centimetres6.83 cubic inches100.8 cubic centimetres6.15 cubic inches | 94.4 cubic centimetres, 17.6 cubic centimetres less5.76 cubic inches, 1.07 cubic inches less94.4 cubic centimetres, 6.5 cubic centimetres less5.76 cubic inches, 0.39 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent90 percent | 89 percent, 1 percent more89 percent, 1 percent less |
| Display size — Screen size is always quoted in inches. | 5.4 inches7.6 inches | 6.3 inches, 0.9 inches more6.3 inches, 1.3 inches less |
| Resolution | 1398 × 20341878 × 2670 | 1206 × 26221206 × 2622 |
| Pixel density | 460 pixels per inch430 pixels per inch | 460 pixels per inch, the same460 pixels per inch, 30 pixels per inch more |
| Cutout | Dynamic IslandNone | Dynamic IslandDynamic Island |
| Rear main | 48MP Fusion f/1.648MP Fusion f/1.6 | 48MP48MP |
| Rear ultra-wide | 48MP Ultra Wide f/2.248MP 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) | 12MP12MP |
| Chip | A20 ProA20 Pro | A19 ProA19 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 44 hrs31 hrs | 32 hrs32 hrs |
| Port | USB-CUSB-C | USB-CUSB-C |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem | 5G · Wi-Fi · Bluetooth5G · Wi-Fi · Bluetooth |
| Water resistance | IP68 (6m for 30 min)IP68 (6m for 30 min) | IP68 (6m for 30 min)IP68 (6m for 30 min) |
| Storage | 256 GB – 2 TB256 GB – 2 TB | 256 GB – 1 TB256 GB – 1 TB |
| Launch price — Base configuration at launch, in US dollars. | 1,999 dollars1,999 dollars | 1,099 dollars, 900 dollars less1,099 dollars, 900 dollars less |
| Released | Oct 2026Oct 2026 | Sep 2025Sep 2025 |
| Status | CurrentCurrent | DiscontinuedDiscontinued |
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Questions about these phones
How much taller is the iPhone 17 Pro than the iPhone Duo?
The iPhone 17 Pro is 32.2 mm taller than the iPhone Duo. The iPhone 17 Pro is also 12.2 mm narrower than the iPhone Duo.
Which phone is lighter, the iPhone Duo or the iPhone 17 Pro?
The iPhone 17 Pro is 48 g lighter than the iPhone Duo. The weight difference is noticeable in the hand.
How does the screen size compare between the iPhone Duo and iPhone 17 Pro?
The iPhone 17 Pro has a 6.3 inch display while the iPhone Duo has a 5.4 inch screen in closed mode. The iPhone 17 Pro screen is about 0.9 inches larger.
Which phone fits better in a typical men's jeans pocket?
The iPhone 17 Pro fits in a typical men's jeans pocket, but the iPhone Duo does not. The iPhone Duo is wider and thicker when closed.
Which phone is better for small hands or one-handed use?
The iPhone Duo is rated better for small hands, though one-handed ease is unclear for both. The iPhone 17 Pro is taller, which may make one-handed use harder.
Is the iPhone Duo worth an upgrade from the iPhone 17 Pro for size alone?
The page verdict says a size-only upgrade is not worth it. The choice depends on whether you prefer the foldable form or classic size.