After learning at apple iphone 6s which was released in 2014 like samsung note 4 is still getting updates, I'm so jealous. Wish samsung would give at least the flasgships 7 years worth of upgrades in software . Missing my note 4
No. 3 years tops and that may be pushing it. The hardware of older phones cannot run the newer software and would slow to a crawl trying to assuming it's even compatible.