Multi-Touch Test
Place several fingers on the arena at once. Each active touch point gets its own colored circle and id so you can confirm how many simultaneous contacts your touchscreen reports (multi-touch / palm rejection). Most phones support 5–10 points.
How to use
- Place several fingers on the arena at the same time — each active contact gets its own colored circle and id.
- Watch the active-points counter and the peak-detected value to learn how many simultaneous touches your hardware supports.
- Rest your palm on the screen to see whether palm rejection drops spurious contacts.
FAQ
How many touch points should my screen support?
Most modern phones support 5 to 10 simultaneous touch points; many laptops and tablets support 10. The peak-detected value shows your device's limit.
Why do some touches disappear?
When you exceed your hardware's maximum simultaneous contacts, the panel stops reporting additional points. Palm rejection can also intentionally drop large contacts.
Does this work with a mouse?
A mouse provides a single pointer, so you will only see one point. Use a touchscreen to test true multi-touch.
Introduction
A multi-touch test confirms how many fingers your touchscreen can track at once. Gestures like pinch-to-zoom and two-finger scroll depend on accurate simultaneous touch reporting, so verifying multi-touch is useful when diagnosing a panel, a repair, or a new device.
What is a touch panel test?
A touch panel test listens for every active pointer and draws a distinct marker for each one. By counting the points on screen, you can see your hardware's simultaneous-contact limit and whether it stays stable as fingers move.
Key Features
Each touch point gets its own color and id so overlapping contacts stay distinguishable.
A live counter plus a peak-detected value reveal the maximum simultaneous touches your device reports.
Markers follow your fingers as they move, exposing any tracking gaps or dropped contacts.
Common Use Cases
- Verifying that a phone or tablet supports the touch points needed for multi-finger gestures.
- Checking palm rejection by resting a hand on the screen while tapping.
- Confirming a repaired or replacement digitizer tracks all contacts correctly.
Best Practices
- Lift and replace fingers a few times to confirm the peak count is consistent.
- Test near the edges and corners, where some panels drop contacts first.
- Combine with the touch screen test for mapping and the touch sensitivity test for pressure.