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DeviceProximityEvent.value

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The value property of DeviceProximityEvent objects provides the current distance between the device and the detected object, in centimeters.

var distance = instanceOfDeviceProximityEvent.value;

A positive number representing a distance in centimeters (cm) between the device's proximity sensor and the detected object.

Specification	Status	Comment
Proximity Sensor The definition of 'Proximity Events' in that specification.	Working Draft	Initial specification

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	No	?	62 Disabled 62 Disabled See bug 1462308. Disabled From version 62: this feature is behind the `device.sensors.proximity.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config. ? — 61	No	No	No

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	No	No	?	62 Disabled 62 Disabled See bug 1462308. Disabled From version 62: this feature is behind the `device.sensors.proximity.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config. 15 — 61	No	No	?