"Android One: Secure, up-to-date and easy to use." Home page (android.com/one) for Android One. Includes an incomplete list of Android One phones. Older ones are missing, and so this should not be used as a reference for individual phones. Part way down the page it says: "Android One phones will receive at least two years of OS upgrades." Fine print at the bottom of the page says: "Confirm exact duration of support for phones in your territory with smartphone manufacturer. Monthly security updates to be supported for at least 3 years after initial phone release." This sentence is also in this 2018 archive: Archived December 31, 2018, at the Wayback Machine.
"Android One". Android.com. Archived from the original on December 22, 2015. Retrieved January 30, 2016.
"NDTV Gadgets". Android One Was Conceived With India in Mind, Says Google's Sundar Pichai. NDTV Correspondent. July 15, 2014. Archived from the original on November 17, 2014. Retrieved December 15, 2014.
"NDTV Gadgets". Android One Was Conceived With India in Mind, Says Google's Sundar Pichai. NDTV Correspondent. July 15, 2014. Archived from the original on November 17, 2014. Retrieved December 15, 2014.
"Android One: Secure, up-to-date and easy to use." Home page (android.com/one) for Android One. Includes an incomplete list of Android One phones. Older ones are missing, and so this should not be used as a reference for individual phones. Part way down the page it says: "Android One phones will receive at least two years of OS upgrades." Fine print at the bottom of the page says: "Confirm exact duration of support for phones in your territory with smartphone manufacturer. Monthly security updates to be supported for at least 3 years after initial phone release." This sentence is also in this 2018 archive: Archived December 31, 2018, at the Wayback Machine.
"Android One: Best Phones". xda-developers.com. From the late 2018 article: "Android One phones must receive regular security updates for three years. Android One phones are guaranteed Android OS updates for two years."
