Output
Contact count; maximum seen; traces
Draw with multiple fingers and inspect simultaneous touch points.
Touchscreen Test · At a glance
Quick answer: Draw with multiple fingers and inspect simultaneous touch points. The maximum seen is the highest simultaneous browser contact count during this session.
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
Contact count; maximum seen; traces
One or more fingers on the surface
Pointer events; touch-capable hardware
Runs on your device; no tool-result upload
Pointer events are used to track contacts reported by the browser. The maximum seen is the highest simultaneous count during this session.
The maximum seen is the highest simultaneous browser contact count during this session. It does not certify every digitizer region or pressure level.
Remove unintended palm contact and check gesture settings. A browser gesture can cancel a contact without a hardware fault.
A browser cannot verify touch pressure or digitizer hardware beyond the events it receives. Reset clears the traces.
Only device-exposed pointer data is available, and pressure support varies. This page does not calibrate physical force.
Draw across the surface with one or more fingers. Observe the simultaneous contact count and colored traces.
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.