If multi-touch is supported, try multiple points at the same time.
Tests mostly run in your browser. Microphone/camera data is not saved on the server.
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How to use and interpret Touch Screen Test
What this test checks
Checks detected touch areas and browser-reported multi-touch support.
Check detected touch areas and multi-touch support.
How to interpret the result
Use the result to see which mobile browser APIs are available and whether sensor, touch or vibration events are exposed to the page.
Browser limitations
Mobile operating systems and browsers may restrict sensors, vibration and battery information. Unsupported API status is not a hardware-failure diagnosis.
Frequently asked questions
What does Touch Screen Test check?
Checks detected touch areas and browser-reported multi-touch support.
Why does a feature work on the phone but not in this test?
The operating system or browser may block that web API even when the physical feature works normally in native apps.
What should I do if the result looks bad?
Repeat the test under the same conditions, check the suggested next diagnostic and compare with another browser, connection or device where practical. Use the related guides for step-by-step troubleshooting.