Vibration API on a used tablet: what to know
Check whether a used tablet can vibrate in a browser, learn what a silent test means, and separate an unsupported feature from a possible hardware fault.
You tap a vibration test on a used tablet and nothing happens. That does not automatically mean the tablet is broken. The browser may not support the Vibration API, or the tablet may not have a vibration motor at all.
Use the Sensors Test to check for browser-based vibration, then work through the results below. The test can show whether a vibration request produces a response, but it cannot identify every reason for silence.
Test vibration on the tablet
- Open the Sensors Test on the tablet you want to check. The test has to run on that device because vibration is a local hardware response.
- Find the vibration check and follow the on-screen prompt to trigger a brief vibration. Keep the page in the foreground and tap the control yourself if prompted.
- Notice whether the tablet vibrates, whether the test reports vibration as unavailable, or whether nothing happens. Repeat the check once after waiting a few seconds.
- If possible, compare the result in another browser on the same tablet. On Android, try a current browser that supports device features. On iPad, do not assume Safari supports browser vibration.
Keep your hand lightly on the tablet's edge or back so you can feel a short response. A case or soft surface can make a faint vibration harder to notice. Do not keep triggering the test if the tablet becomes warm or behaves unusually.
What the result means
The tablet vibrates when the test requests it
The browser can send a vibration request and the tablet responds. This confirms basic vibration output at that moment, but it does not prove that every app's haptics work, that vibration is strong enough for every alert, or that the motor will respond consistently over time.
The test says vibration is unavailable
The browser or operating system is not exposing vibration to the page. It may also mean the tablet has no vibration motor. A browser test cannot distinguish those causes by itself. Check the tablet model's specifications and try a supported browser before treating this as a hardware fault.
The test runs but you feel nothing
The request may have been accepted without a physical motor responding, or the vibration may be too faint to notice. Some tablets do not include a vibration motor, even when their phones from the same brand do. Check whether the device can vibrate for system alerts or other built-in functions.
It works in one browser but not another
The tablet's hardware can respond, so the difference is likely browser support, version, or a browser restriction. Use the browser that passes the test, and check for updates to the browser and operating system.
How to troubleshoot a silent vibration test
- Confirm that the tablet has a vibration motor. Look up the exact model number in the device information or its manufacturer specifications. If the model has no motor, a browser cannot make it vibrate.
- Keep the test page active and tap its control. Browsers commonly restrict vibration requests unless they follow a direct user action. A background tab, an automatic page load, or a request made while the screen is locked may not work.
- Check the system vibration setting. On many Android tablets, open Settings › Sound & vibration or Settings › Accessibility › Vibration & haptics. The wording and available controls vary by manufacturer. If vibration intensity is adjustable, make sure it is not set to zero.
- Try another browser on the same tablet. If the second browser works, the motor is responding and the first browser is the likely limitation. Update the browser before testing again. There is usually no separate website permission switch for vibration like there is for a camera or microphone.
- Restart the tablet and retest. A restart can clear a temporary browser or system problem. Retest with the tablet unlocked and the page visible.
On iPad, there may be no vibration setting to change because many iPad models do not have a vibration motor. Safari also may not expose browser vibration. If you are checking an iPad, verify the model first, and do not take a silent browser test alone as evidence of damage.
When it may be a hardware problem
A hardware fault is more likely if the tablet model is confirmed to have a vibration motor, system alerts that normally use vibration are silent, and the browser test also fails in more than one supported browser. Check the warranty or return window before opening the tablet. Vibration motors are internal parts, so repair is usually a job for the manufacturer or a repair shop rather than a safe do-it-yourself fix.
Why browser vibration tests have limits
The Vibration API is a browser feature that lets a web page request a vibration pattern. It does not provide a universal sensor reading that says whether a motor is physically installed or healthy. The browser, operating system, device model, and page state all affect whether the request is allowed. Some browsers do not support it, and some devices have no motor to respond.
If you want more detail about browser restrictions, see why phone vibration is blocked in some browsers. A successful browser test shows a response, while a failed one is only a clue to investigate.
