The iPhone Duo has two screens with different shapes, so a wallpaper cut for a regular iPhone gets cropped on both. The outer display is a tall 1398 x 2034 portrait, and the inner display opens up to a 2670 x 1878 canvas when you hold the phone sideways.
Apple’s stock desert dunes wallpaper comes in light and dark versions, and you can download the iPhone Duo dunes wallpaper here. If you want something different, these libraries give away or sell wallpapers made for both screens.
Every iPhone Duo Wallpaper Needs an Outer File and an Inner File
The outer display measures 5.4 inches at 1398 x 2034 pixels. The inner display measures 7.6 inches at 1878 x 2670 pixels, which becomes 2670 x 1878 when the phone is held sideways. Both panels are OLED with ProMotion up to 120Hz and a Dynamic Island.
| Screen | Size | Wallpaper file | Pixel density |
|---|---|---|---|
| Outer display | 5.4 inches | 1398 x 2034 (portrait) | 460 ppi |
| Inner display, sideways | 7.6 inches | 2670 x 1878 (landscape) | 430 ppi |
| Inner display, upright | 7.6 inches | 1878 x 2670 (portrait) | 430 ppi |
The two screens have nearly the same proportions, about 1.42 to 1 on the inner display and 1.45 to 1 on the outer one. A landscape image crops cleanly on the open screen, and the same scene recomposed in portrait covers the closed one.
DuoWallpaper.Net Gives Away Matched Pairs for Free
DuoWallpaper.Net ships each scene as two JPEG files, a portrait crop for the outer display and a landscape crop for the inner display. Downloads are free for personal use, need no account or email address, and carry no device frame, logo or text.
Every wallpaper page shows both crops with their exact pixel dimensions before you download. Collections cover Christmas, minimal, space, aesthetic and black wallpapers.
These scenes on the free wallpapers page are worth opening first.
- Golden Mist shows golden trees dissolving into morning mist.
- Violet City pairs a Los Angeles skyline and palm trees with a violet and orange dusk sky.
- Rose Desert Dune features sculpted rose-colored dunes against a pale sky.
- Black Ocean Waves turns nearly black waves into a deep, textured sea.
- Alpine Glass Cabin places an angular glass cabin between snow-covered mountains.
- Gargantua Black Hole I shows a luminous accretion disk above a pale planetary horizon.
Unfold Sells 670 Designs and Gives Away 25
Unfold is an independent studio run by one designer, with 670 original designs across 32 collections. Each design ships in three files, an outer version at 1398 x 2034, a sideways inner version at 2670 x 1878 and an upright inner version at 1878 x 2670.
The upright file keeps the subject above or below the fold, which runs across the middle when the phone is held that way. The sideways version is the one to try first on the inner display.
Collections include Space, Ocean, Gardens, Castles, Gradients, Minimal, AMOLED Dark and Lo-fi Night City, plus sets tuned for the inner display’s nano-texture finish.
Twenty-five designs are free at full resolution. After that, a single design costs $1.99 and most 20-design packs cost $9.99, while the 30-design Vintage Pulp pack is $12.99 and the 40-design Pop Art pack is $15.99. Purchases come with a personal license that does not allow reselling or redistribution.
Wallpapers.com Has the Biggest Library but Few Duo-Specific Details
Wallpapers.com runs an iPhone Duo page with more than 1,200 free wallpapers in the 1878 x 2670 and 1398 x 2034 sizes. Downloads need no sign-up.
Most of the grid is anime art, flowers, nature photos and food, so it works as a browse-and-pick library rather than a source of matched pairs. It names no artists and states no usage terms, so check the license on anything you plan to use beyond your own phone.
A Good iPhone Duo Wallpaper Keeps Its Subject Away From the Crease and the Dynamic Island
Match the native size so nothing gets stretched, which means 1398 x 2034 for the outer screen and 2670 x 1878 for the inner screen. Keep faces and text off the vertical center of landscape files, and leave the top center of both screens clear for the Dynamic Island.
Open skies, water and dunes leave room for icons and widgets. Busy collages and pattern-heavy designs work better when the clock and app labels sit over a calmer area.
To set one, save the image to Photos, open Settings, tap Wallpaper, and choose Add New Wallpaper. Pinch to adjust the framing before you tap Add. Outer-screen files are portrait images, so they also work on other iPhones.
Free Unsplash Dune Photos Crop Cleanly to Both Duo Sizes
Unsplash is a safe place to start if you want a wallpaper with no strings attached. Its license lets you use photos for free, with no credit required.
I cropped one dune photo by Ze Paulo on Unsplash to both iPhone Duo sizes as a test. The outer version is 1398 x 2034 pixels and the inner version is 2670 x 1878 pixels.
Browse Unsplash for dunes, fog or ocean horizons.
Quick Answers on iPhone Duo Wallpaper Sizes
What size are iPhone Duo wallpapers?
The outer display uses 1398 x 2034 pixels and the inner display uses 2670 x 1878 pixels sideways or 1878 x 2670 pixels upright.
Can I use regular iPhone wallpapers on the iPhone Duo?
Yes, but a standard iPhone image, such as the iPhone 18 Pro wallpapers, is about 2.17 times taller than it is wide, while the iPhone Duo screens sit near 1.4 to 1.45, so a large part of the image gets cropped.
Can I use free iPhone Duo wallpapers commercially?
Most of the aforementioned websites limit their wallpapers to personal use. Unsplash photos can be used commercially.
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