How to use this test
Start a short pattern
Choose a pattern and hold the device securely.
Feel and confirm
Confirm whether the vibration was noticeable.
Stop when finished
Stop the pattern at any time.
What we check
The page observes only the browser API or touch events available during this session.
Values and availability depend on the device, operating system, browser and permissions.
What this test can’t tell you
Many browsers, including iPhone browsers, do not expose vibration to web pages. This does not prove that the device motor is faulty.
Something not working?
The test is unavailable
Open the page on the phone or tablet you want to check, then use a current browser and allow a sensor permission only if prompted.
The value does not change
Move the device deliberately or try another browser. A web page cannot enable a sensor that the browser does not expose.
Common questions
Does this diagnose my device?
No. It shows what the browser received in this session.
Is any sensor data uploaded?
No. The displayed values stay in this browser.