Keep device sizes believable in a multi-device layout

Put it into practice

1. Choose one primary device.
2. Compare the proportions of the supporting devices.
3. Check whether overlap hides important content.

What this looks like

A detail to keep clear

Exact physical realism is optional for stylized layouts, but inconsistent scale should be deliberate.

Using MockupX

Device frames, output dimensions and source screenshot dimensions are separate choices. A phone frame on a square canvas is useful for social sharing; it is not automatically an accepted app-store upload. Check orientation, fit and output pixels independently.

Check the result

Keep the original screenshot, then review the exported file at the size where people will see it. Check the message, the visible interface and the final crop separately. For a handoff, record the destination and the approved file so another person can distinguish the final version from a draft.

References and further reading

Use the official references for format behavior and current destination requirements. The composition advice above is a practical design approach, not a promise of platform approval.