Vibration Tester: Test Phone Vibration With Patterns

What is it?

The Vibration Tester checks whether your phone’s vibration works: Tap a pattern to feel it (short buzz, long buzz, double tap, heartbeat, SOS, ringtone), or type Your own pattern.

Who is it for?

Android users checking a vibration motor after a drop or repair, developers testing vibration patterns, and buyers checking second-hand phones.

How to use it

  1. Tap a pattern to feel it.
  2. For your own, type milliseconds like 200, 100, 200 and tap Play my pattern.
  3. Stop ends it.

Buying a used phone?

Run the long buzz and the SOS pattern: a healthy motor feels strong and even; rattling or weak buzzing suggests a problem.

Errors and how to fix them

  • This device or browser cannot vibrate from a web page. iPhones and iPads don’t allow it in any browser, and most computers have no vibration motor.
  • “Write milliseconds separated by commas, like 200, 100, 200 (buzz, pause, buzz). Each up to 10000”
  • Nothing on Android: check vibration isn’t off in Settings → Sound & vibration, and that battery saver isn’t limiting it.

Questions people ask

  • Why doesn’t it work on my iPhone? iPhones don’t allow websites to vibrate the phone in any browser.
  • How long can a buzz be? Up to 10,000 milliseconds (10 seconds) per buzz.

Practical tip

Try the SOS pattern (short-short-short, long-long-long, short-short-short); if you can feel each buzz clearly and evenly, the motor is healthy.

Open the tool: Vibration Tester

Still stuck?

Contact support. Tell us which tool or page you were using, what you tapped, what you saw, and your phone or computer and browser (for example: Android phone, Chrome). We reply by email.

Questions, or an error not listed here?

Tell us in the comments: what you were doing, the exact message you saw, and your device and browser. We read every comment and add new fixes to this article.