devicecheckers
Runs in your browser. Nothing is uploaded.

Sensor Test

Read orientation, compass heading, and acceleration when the phone has those sensors.

Phones have these sensors. A desktop usually does not.

Alpha
—
Beta
—
Gamma
—
Compass
—
X
—
Y
—
Z
—

More tests

Touch Test Draw with one or more fingers and look for dead zones. Vibration Test Play short patterns on the vibration motor. Screen Info Show resolution, pixel ratio, browser, and device details.

What it measures

Orientation

Alpha, beta, and gamma, plus a compass heading when the browser provides one.

Motion

Acceleration including gravity, on three axes.

Questions

Desktop shows no sensor data.
That is expected. Phones have these sensors. iOS also asks for permission the first time.

Is the motion uploaded?
No. The numbers are drawn on the page and dropped when you leave.