Vibration Test

How to test your phone's vibration

1. Open the page on your phone in Chrome, Samsung Internet, Edge or Firefox. Turn off silent mode limits and battery saver, which can block vibration.
2. Tap Short or Long. You should feel the buzz while the phone icon shakes and the timeline fills.
3. Try Weak, Medium and Weak to strong. A healthy motor is felt even with the weak pulses.
4. Use Hold 10 s to listen for rattling or a motor that fades, and answer Did you feel it? for advice.
5. On iPhone, tap iPhone haptic tick, since Safari cannot play vibration patterns.

What the results mean

A working vibration motor gives a crisp buzz that starts and stops with the timeline. Here is how to read what you feel:

• Buzz on every pattern: the motor is fine.
• Long works, weak does nothing: usually normal. Weak is simulated with very short pulses, and the coin-type motors in many budget phones need a moment to spin up. On phones with a linear motor (most flagships), weak should still be felt.
• Buzz with a rattle or a grinding sound: the motor or its bracket is loose, often after a drop or a repair.
• Buzz that fades during the 10 second hold: a worn motor or a weak battery connection.
• Nothing at all, but the status says it played: vibration is switched off in settings, the phone is in a mode that blocks it, or the motor has failed. Try a system vibration such as the keyboard or a call to tell the two apart.

Why iPhones cannot run vibration patterns

Websites vibrate a phone with the Vibration API, which Chrome, Edge, Samsung Internet and Firefox support on Android. Apple has never added it to Safari, and every iPhone browser uses Safari's engine, so no website can play a pattern on an iPhone. Since iOS 18, Safari does give a light haptic tick when a switch control is tapped, which is what the iPhone button uses. To test an iPhone motor fully, flip the ring/silent switch or Action button, or go to Settings > Sounds & Haptics and tap a ringtone with haptics on.

Weak, medium and strong: how strength works

The Vibration API can only turn the motor on and off for a number of milliseconds; it has no strength setting. This page simulates lower strength by switching the motor on and off very quickly: 12 ms on and 38 ms off feels weak, 30 on and 20 off feels medium, and continuous feels strong. The phone's own vibration intensity setting also scales every buzz, so if everything feels faint, raise it in Settings > Sound and vibration > Vibration intensity.

Common problems and fixes

Nothing happens on Android

Open Settings > Sound and vibration and check that vibration is on and its intensity is not zero. Turn off Do Not Disturb and power saving modes, which often stop vibration. Then tap a pattern again: browsers only vibrate after a tap on the page.

It vibrates for calls but not here

The browser may not support vibration, or a setting blocks it for websites. Try Chrome. Some phones also block vibration in the browser while the screen is mirrored or in a car mode.

The vibration is weak or rattles

A loose motor rattles; a failing one buzzes weakly or only when the phone is tapped. Restart the phone to rule out software. If it persists, the motor is a cheap part that a repair shop can replace.

The motor stopped working after water damage

Turn the phone off and let it dry fully before testing again. Corrosion on the motor contacts is common after water and needs a repair.