WCAG 2.1 · Level A · Operable
WCAG 2.5.4 — Motion Actuation
Functions triggered by device motion (shake, tilt) must also work via UI controls and be disableable.
WCAG 2.5.4 at a glance
Level A · Principle: Operable · Added in WCAG 2.1. Level A is the minimum — failing it blocks some users entirely.
What it means
Functions triggered by device motion (shake, tilt) must also work via UI controls and be disableable.
Who it helps
Users who can’t move the device or who trigger motion accidentally.
Common failures
- “Shake to undo” with no button alternative
How to meet WCAG 2.5.4
- Provide a standard control for any motion-triggered action
How to test it
Manual.