This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The read-only property returns a DOMString that uniquely identifies a device.


var id =


A DOMString.


Specification Status Comment
Web Bluetooth
The definition of 'id' in that specification.
Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 45.0 [1]        
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support Not supported Not supported           Not supported

[1] Behind a flag.  Chrome OS only.

Document Tags and Contributors

 Contributors to this page: mrenty, jpmedley
 Last updated by: mrenty,