Goldfold
iPhone Duo guides · Free tool · Updated
iPhone Duo screen size comparison
Pick the phones and see their displays side by side, drawn to the same scale. Diagonals, pixels and ppi are Apple's published figures; the width and height of each display are calculated from them.
| Diagonal | Resolution (px) | ppi | |
|---|---|---|---|
| iPhone Duo (closed, outer) | 5.4" | 1398 × 2034 | 460 |
| iPhone Duo (open, inner) | 7.6" | 1878 × 2670 | 430 |
| iPhone 17 | 6.3" | 1206 × 2622 | 460 |
| iPhone Air | 6.5" | 1260 × 2736 | 460 |
How to read the comparison
The closed iPhone Duo has a 5.4-inch outer display, smaller than the iPhone 17's 6.3 inches. Open it and you get a 7.6-inch inner display.
Diagonals, resolutions and pixel densities are the numbers Apple publishes. Width, height and area are our own arithmetic from those numbers: handy for comparing, but not a measurement of the glass.
Why the numbers differ
The outer display is 1398 × 2034 pixels at 460 ppi, the same pixel density as the iPhone 17 and iPhone Air. The inner display is 1878 × 2670 pixels at 430 ppi.
Apple lists the iPhone Duo at 254 g, against 177 g for the iPhone 17 and 165 g for the iPhone Air.
Questions
How big is the iPhone Duo screen?
Closed, the outer display is 5.4 inches diagonal (1398 × 2034 pixels). Open, the inner display is 7.6 inches diagonal (1878 × 2670 pixels). Both are OLED, according to Apple.
Is the iPhone Duo bigger than the iPhone 17?
Closed, its outer display is smaller than the iPhone 17's 6.3-inch display. Open, its 7.6-inch inner display is larger. Apple lists it at 254 g against 177 g for the iPhone 17.
Sources
Goldfold turns the iPhone Duo into a glass of water that pours into an aquarium when you unfold it. Paid once, no ads.
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