Accelerometer Test
Tilt and shake your device to test the motion sensors.
Spirit Level
Center the bubble to level your device
About Accelerometer Sensors
An accelerometer measures acceleration forces along three axes. This enables your device to detect motion, tilt, and orientation for features like screen rotation, step counting, and gaming controls.
Understanding the Axes
- X-Axis: Side-to-side acceleration (left/right tilt)
- Y-Axis: Forward-backward acceleration (front/back tilt)
- Z-Axis: Up-down acceleration (toward/away from ground)
Values are measured in G-forces (1G = 9.8 m/s², Earth's gravity).
How to Troubleshoot a Failed Accelerometer Test
If the values stay frozen, confirm motion permissions are allowed and disable battery saver or privacy settings that block motion sensors. Rotate the device slowly, then shake it briefly, to confirm both tilt and acceleration changes are being detected.
For a fuller device check, compare this page with the Gyroscope Test, Multi Touch Test, and Vibration Test. If several mobile sensor tools fail at once, the issue is usually device-level rather than browser-level.
Where Accelerometer Data Is Used
Phones use accelerometer readings for auto-rotate, pedometer features, gesture controls, camera leveling, and many casual games. If this page behaves oddly, those everyday features may also feel delayed, inaccurate, or completely disabled.
Frequently Asked Questions
What is a G-force?
G-force is a measure of acceleration relative to Earth's gravity. 1G = the force you feel from gravity while standing still. When you jump, you momentarily experience more than 1G.
Why is Z showing ~1G when still?
Even when stationary, gravity pulls down on your device at 1G (9.8 m/s²). This is normal and expected behavior.