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User Agent Strings for Fire Tablets (Fire Tablets)

An app or web page can read the user agent string to detect that the device is a Fire tablet and then provide a specific user experience. User agent strings may include the version of the host operating system, the version of the browser, and other information.

The following table shows the user agent strings for the Fire tablets.

Tablet	User agent	String
Fire 7 (2019) Fire HD 8 (2018) Fire HD 10 (2017) Fire 7 (2017) Fire HD 8 (2017) Fire HD 8 (2016)	Silk browser	See Amazon Silk User Agent in the Amazon Silk Developer Guide.
	android.webkit .WebView	Mozilla/5.0 (Linux; Android android-version; product-model Build/product-build) AppleWebKit/webkit-version (KHTML, like Gecko) Silk/browser-version like Chrome/chrome-version Safari/webkit-version
	Web app runtime	See Web App FAQs
Fire HD 10 (2015) Fire HD 8 (2015) Fire (2015)	Silk browser	See Amazon Silk User Agent in the Amazon Silk Developer Guide.
	android.webkit .WebView android.webkit.WebView	Mozilla/5.0 (Linux; U; Android 5.1; locale ; device Build/build)AppleWebKit/webkit (KHTML, like Gecko) Version/4.0 Chrome/chrome Safari/safari
	Web app runtime	See Web App FAQs
Fire HDX 8.9 (2014) Fire HD 7 (2014) Fire HD 6 (2014)	Silk browser	See Amazon Silk User Agent in the Amazon Silk Developer Guide.
	android.webkit.WebView	Mozilla/5.0 (Linux; U; Android 4.4.2; locale ; device Build/build) AppleWebKit/webkit (KHTML, like Gecko) Version/4.0 Chrome/chrome Safari/safari
	Web app runtime	See Web App FAQs
Kindle Fire HDX 8.9" (2013) Kindle Fire HDX 7" (2013) Kindle Fire HD 7" (2013)	Silk browser	See Amazon Silk User Agent in the Amazon Silk Developer Guide.
	android.webkit.WebView	Mozilla/5.0 (Linux; U; Android 4.4.2; locale ; device Build/build) AppleWebKit/webkit (KHTML, like Gecko) Version/4.0 Chrome/chrome Safari/safari
	Web app runtime	See Web App FAQs
Kindle Fire HD 8.9" (2012) Kindle Fire HD 7" (2012) Kindle Fire (2012)	Silk browser	See Amazon Silk User Agent.
	`android.webkit.WebView`	Mozilla/5.0 (Linux; U; Android 4.0.3; locale ; device Build/build) AppleWebKit/webkit (KHTML, like Gecko) Version/4.0 Chrome/chrome Safari/safari
	Web app runtime	See Web App FAQs
Kindle Fire (2011)	Silk browser	See Amazon Silk User Agent.
	android.webkit.WebView	Mozilla/5.0 (Linux; U; Android 2.3.4; en-us; Kindle Fire Build/GINGERBREAD) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Safari/533.1
	Web app runtime	See Web App FAQs

Placeholders in User Agent Strings

The following placeholders in the user agent string are for version numbers that vary by device, or for values that can be altered by the user:

• <android> indicates the Android version number, for example, 4.2.2.
• <locale> indicates the chosen language and country or region for the phone. The value consists of the lowercase hyphenated concatenation of the two-letter ISO 639-1 language code and the two-letter ISO 3166-1 alpha-2 country code, for example, en-us.
• <device> is the value of android.os.Build.MODEL, for example, KFTT.
• <build> is the value of android.os.Build.ID, for example, JDQ39.
• <webkit>, <chrome>, and <safari> indicate the version numbers for WebKit, Chrome, and Safari, for example, 534.30.
• <amazon> indicates the version number of the Amazon web app platform, for example, 3.4.0.

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Last updated: Oct 29, 2020