Web/API/DeviceMotionEvent/rotationRate

Returns the rate at which the device is rotating around each of its axes in degrees per second.

Note: If the hardware isn't capable of providing this information, this property returns null.

Syntax

var rotationRate = deviceMotionEvent.rotationRate;

The rotationRate property is a read only object describing the rotation rates of the device around each of its axes:

alpha: The rate at which the device is rotating about its Z axis; that is, being twisted about a line perpendicular to the screen.
beta: The rate at which the device is rotating about its X axis; that is, front to back.
gamma: The rate at which the device is rotating about its Y axis; that is, side to side.

Specification	Status	Comment
DeviceOrientation Event Specification	Editor's Draft	Initial definition.

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`rotationRate` Experimental'	Chrome Full support Yes	Edge Full support 12	Firefox Full support 6	IE No support No	Opera Full support Yes	Safari ?	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support 6	Opera Android Full support Yes	Safari iOS Full support 4.2	Samsung Internet Android Full support Yes

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.