Output
Browser motion or orientation readings
UserBenchmark / All Tools / Accelerometer Test
Mobile
Accelerometer Test
Inspect browser motion and acceleration events when supported and permitted.
Free to useNo downloadNo sign-up
Accelerometer Test · At a glance
Quick answer: Inspect browser motion and acceleration events when supported and permitted. Acceleration and acceleration including gravity are different signals.
Accelerometer Test
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
How to use this tool
- Start motion access, keep the device secure and gently tilt or move it.
- Compare stationary and moving readings.
Input
A supported physical device and permission
Browser requirement
HTTPS; DeviceMotion or DeviceOrientation
Processing
Runs on your device; no tool-result upload
How it works and what the result means
Readings come from DeviceMotion or DeviceOrientation events. Axes and coordinate frames vary with device orientation and browser support.
Reading the result
Acceleration and acceleration including gravity are different signals. Device orientation changes the axis interpretation.
What to check next
Check the browser permission and whether the event provides values. A desktop may have no accessible motion sensor.
Some browsers require HTTPS, explicit permission or a physical mobile device. A desktop computer may have no accessible sensor.
Frequently asked questions
Why is a stationary device not always showing zero?
Some fields include gravity, and sensor noise or orientation contributes. Check which signal the browser supplied before interpreting the numbers.
How do I start the Accelerometer Test?
Start the sensor test and grant motion permission if prompted. Gently move or rotate the device.
Does this tool require a download or an account?
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.
Why can two attempts give different results?
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.