Chrome for Android User-Agent

Chrome for Android reports its user agent string (UA) in the following formats, depending on whether the device is a phone or a tablet:

Phone UA:

Mozilla/5.0 (Linux; <Android Version>; <Build Tag etc.>)
AppleWebKit/<WebKit Rev> (KHTML, like Gecko) Chrome/<Chrome Rev> Mobile
Safari/<WebKit Rev>

Tablet UA:

Mozilla/5.0 (Linux; <Android Version>; <Build Tag etc.>)
AppleWebKit/<WebKit Rev>(KHTML, like Gecko) Chrome/<Chrome Rev>
Safari/<WebKit Rev>

Here's an example of the Chrome user agent string on a Galaxy Nexus:

Mozilla/5.0 (Linux; Android 4.0.4; Galaxy Nexus Build/IMM76B)
AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.133 Mobile

For comparison, here are examples of other popular user agent strings:

Desktop Chrome:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3)
AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.151

Desktop Safari:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3)
AppleWebKit/534.53.11 (KHTML, like Gecko) Version/5.1.3

iPhone Safari:

Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en)
AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543

iPad Safari:

Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us)
AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b

User agent mechanics

Like all other browsers, Chrome for Android sends this information in the User-Agent HTTP header every time it makes a request to any site. It’s also available in the client through JavaScript using the navigator.userAgent call.

If you are parsing user agent strings using regular expressions, the following can be used to check against Chrome for Android phones and Android tablets:

  • Phone pattern: 'Android' + 'Chrome/[.0-9]* Mobile'
  • Tablet pattern: 'Android' + 'Chrome/[.0-9]* (?!Mobile)'

Chrome for iOS User-Agent

The User-Agent string in Chrome for iOS is the same as the Mobile Safari User-Agent, with CriOS/<ChromeRevision> instead of Version/<VersionNum>.

Here's an example of a Chrome for iPhone User-Agent string:

Mozilla/5.0 (iPhone; U; CPU iPhone OS 5_1_1 like Mac OS X; en)
AppleWebKit/534.46.0 (KHTML, like Gecko) CriOS/19.0.1084.60 Mobile/9B206

For more information about Mobile Safari user agent strings, see this article.