How to run the test
- Press Full screen to test right up to the edges.
- In Fill the grid mode, slowly swipe across the whole screen. Every cell your finger passes over fills with color.
- If a cell refuses to fill, tap that spot several times and check whether a screen protector or case edge is in the way.
- In Free draw mode, slowly draw straight lines to find places where the line breaks or jumps.
Swipes that start at the very edge may be taken by your system for back or notification gestures. Fill edge cells by swiping from the inside outward.
Multi-touch
Put several fingers down at once and a numbered circle appears under each one, while Max at once records the highest count. Device supports is the number your browser reports. Fingers placed very close together may register as one.
Pen input
With a stylus, pressure and tilt appear below the test area, and in Free draw the line width follows pressure. These values only appear when both the pen and the browser support them.