The iPhone SE started at $400 and is now 3.5 years old. It will probably get another 2 major iOS releases. (https://en.wikipedia.org/wiki/IPhone_SE)

The Nexus 4 launched November 2013 and got it's last major update to 5.1.1 in May 2015 according to Wikipedia. (https://en.wikipedia.org/wiki/Nexus_4)