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/Web APIs

Navigator.deviceMemory

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

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

The deviceMemory read-only property of the Navigator interface returns the approximate amount of device memory in gigabytes.

The reported value is imprecise to curtail fingerprinting. It’s approximated by rounding down to the nearest power of 2, then dividing that number by 1024. It is then clamped within lower and upper bounds to protect the privacy of owners of very low- or high-memory devices.

Syntax

memoryAmount = navigator.deviceMemory

Value

A floating point number; one of 0.25, 0.5, 1, 2, 4, 8.

Example

const memory = navigator.deviceMemory
console.log (`This device has at least ${memory}GiB of RAM.`)

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
deviceMemory
63
79
No
No
50
No
63
63
No
46
No
8.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/Navigator/deviceMemory