Fire HD 10 is ten inches, Fire HD 8 is eight inches, and Fire 7 is seven inches. Generations and release years. Tablets also have a generation in the name. The generation refer to the release year. For example, all tablets released in 2019 are 9 the generation tablets. (Don't confuse the tablet size with the generation.
On October 2, 2014, the Fire HD third generation was released, which is part of the Fire Tablet's fourth generation, with 6-inch and 7-inch touchscreen sizes. In addition, the Fire HD Kids Edition was released, which is the same device as the Fire HD 6 except it comes with a case and one-year subscription to Kindle Freetime apps.  3 Simple Steps to Install Google Play Store on Kindle Fire I’m guessing your Kindle Fire HD 8.9 is the 2nd Generation one right? (the one that was released in 2012).. The thing is this has mostly successfully worked on any Amazon Fire tablet that was released from 2014 onwards (4th Generation and above) that’s running Fire OS 5. How to Hack a Kindle Fire to Get the Google Play Market
Amazon Kindle Fire (2nd Generation) Software Update 10.4.8
User Guide for Amazon KINDLE Tablet and eReader, Free Kindle Fire HD 8.9 4G - 2nd Generation - Quick Start Guide; Kindle Fire HD 10 - Quick Start Guide; Kindle Fire HDX - Getting Started; Kindle Fire HDX - 3rd Generation - Getting Started; Kindle Fire HDX 8.9 - Getting Started; Kindle Fire HDX 8.9 - 3rd Generation - Getting Started; Amazon Kindle Fire HD Parts - iFixit The Kindle Fire HD is the second generation of Amazon's Kindle Fire line of tablets. It was announced September 2012 and is available in three models, 6 inch, 7 inch and 8.9 inch. 65,436
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