Use Cases
App Store Connect error
This error means at least one screenshot you uploaded doesn't match an exact accepted pixel size for its display. App Store Connect validates against an exact allow-list, so even a 1-pixel difference is rejected. The fix: re-export every screenshot at an exact accepted size and re-upload. The correct sizes are below, and you can export them all automatically in the next step.
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%2FPhoenix%20Baker.webp&w=64&q=75){kind=small}
%2FLana%20Steiner.webp&w=64&q=75){kind=small}
%2FDemi%20Wilkinson.webp&w=64&q=75){kind=small}
%2FDrew%20Cano.webp&w=64&q=75){kind=small}
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The full error usually reads:
“The dimensions of one or more screenshots are wrong. Screenshots dimensions should be: 1242 × 2688px, 2688 × 1242px, 1284 × 2778px or 2778 × 1284px.”
The exact numbers in your error tell you which display bucket failed — in this example, the 6.5-inch iPhone display. Match that slot to the table below.
Provide at least the 6.9-inch iPhone set. Match the failing slot in your error to the exact dimension here.
| Display | Portrait | Landscape | Note |
|---|---|---|---|
| 6.9-inch (iPhone 17 / 16 / 15 Pro Max) | 1320 × 2868 | 2868 × 1320 | Primary — lead with this |
| 6.7-inch (Plus / earlier Pro Max) | 1290 × 2796 | 2796 × 1290 | Accepted |
| 6.5-inch | 1242 × 2688 or 1284 × 2778 | 2688 × 1242 or 2778 × 1284 | The set in the common error text |
| 5.5-inch | 1242 × 2208 | 2208 × 1242 | Legacy |
| iPhone Air (6.5-inch) | 1260 × 2736 | 2736 × 1260 | New in 2026 |
| Display | Portrait | Landscape | Note |
|---|---|---|---|
| iPad 13-inch (M4) | 2064 × 2752 | 2752 × 2064 | Current primary iPad |
| iPad 12.9-inch | 2048 × 2732 | 2732 × 2048 | Accepted |
Need the full reference including Apple Watch and Google Play? See the App Store screenshot dimensions guide.
Re-exporting each screenshot at the exact pixel size by hand in Figma or Photoshop is where the error usually creeps back in — one rounded crop and you're a pixel off again. The reliable fix is a tool that locks output to Apple's exact dimensions for each device.
With the App Store screenshot generator, you design one set and export every device at its native, App-Store-valid size — 1320×2868, 1290×2796, 1242×2688, and the rest — with no rounding and no scaling artifacts. Each slot matches the allow-list, so the dimensions check passes on the first upload.
It's an App Store Connect upload error. One or more screenshots you uploaded don't match an accepted pixel size for that display bucket. App Store Connect rejects the whole upload until every screenshot in the set matches an allowed dimension exactly — even being off by a single pixel triggers it. The error often lists the expected sizes, e.g. 1242×2688, 2688×1242, 1284×2778, or 2778×1284 for the 6.5-inch display.
The primary iPhone size in 2026 is 1320×2868 (6.9-inch, iPhone 17/16/15 Pro Max). Other accepted sizes: 6.7-inch 1290×2796; 6.5-inch 1242×2688 or 1284×2778; 5.5-inch 1242×2208; iPhone Air 1260×2736; iPad 13-inch 2064×2752; iPad 12.9-inch 2048×2732. Landscape is the same numbers reversed. Provide at least the 6.9-inch set.
App Store Connect validates against an exact allow-list of dimensions, not a tolerance range. A screenshot at 1320×2867 or 1321×2868 is rejected the same as one at completely the wrong size. This usually happens when a screenshot is edited, cropped, or scaled in a tool that doesn't snap to the exact device resolution.
Apple's Simulator captures at the device's native resolution, which is valid — but if you then edited it (added a frame, cropped a status bar, resized for a different bucket) in a tool that rounds dimensions, you can end up a pixel or two off. Re-export at the exact target size to fix it.
Not safely. App Store Connect's validator can flag identical file hashes across dimension buckets for manual review, and reusing an image often means the dimensions are wrong for at least one slot. Export each slot at its own correct size instead.
Re-export every screenshot at an exact accepted size. The fastest path is a tool that locks output to the correct App Store dimensions automatically — design your set once, export each device at its native size, and upload. Screenhance does this so the set you upload always matches Apple's spec.
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Try it freeExport every App Store size at the exact accepted dimensions. No rounding, no rejections.
