Only the 3rd generation Fire TV Stick runs Fire OS 6, based on Android 7.1. The latest Fire tablet runs Fire OS 5.6, based on Android 5.1: https://en.wikipedi

Only the 3rd generation Fire TV Stick runs Fire OS 6, based on Android 7.1. The latest Fire tablet runs Fire OS 5.6, based on Android 5.1: https://en.wikipedia.org/wiki/Fire_OS#List_of_Fire_OS_versions https://en.wikipedia.org/wiki/Fire_OS#List_of_Fire_OS_versio...