Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The Sec-CH-UA-Model user agent client hint request header indicates the device model on which the browser is running.
| Header type | Request header, Client hint |
|---|---|
| Forbidden header name | yes |
Sec-CH-UA-Model: <device-version>
<device-version>A string containing the device version. For example "Pixel 3".
A server requests the Sec-CH-UA-Model header by including the Accept-CH in a response to any request from the client, using the name of the desired header as a token:
HTTP/1.1 200 OK Accept-CH: Sec-CH-UA-Model
The client may choose to provide the hint, and add the Sec-CH-UA-Model header to subsequent requests. For example, on mobile phone the client might add the header as shown:
GET /GET /my/page HTTP/1.1 Host: example.site Sec-CH-UA: " Not A;Brand";v="99", "Chromium";v="96", "Google Chrome";v="96" Sec-CH-UA-Mobile: ?1 Sec-CH-UA-Platform: "Android" Sec-CH-UA-Bitness: "64" Sec-CH-UA-Model: "Pixel 3 XL"
| Specification |
|---|
| User-Agent Client Hints # sec-ch-ua-model |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
Sec-CH-UA-Model |
89 |
89 |
No |
No |
75 |
No |
89 |
89 |
No |
63 |
No |
15.0 |
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https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Sec-CH-UA-Model