You said a Samsung phone is "UNUSABLE" after several months. That is factually not true.
Based on Android experts noted above. AndroidPolice main editor felt that way. CNET felt that way. I did not put words in their mouths. I am just quoting from the experts. Don’t shoot messenger!
And then you have the link: https://thedroidguy.com/2017/12/fix...-slow-month-use-troubleshooting-guide-1073877
[doublepost=1515176605][/doublepost]Just a reminder: https://www.futuremark.com/pressreleases/is-it-true-that-iphones-get-slower-over-time
Again, Apple does NOT throttle the processor unless battery capacity/life is near the end AND your current battery level is low (below 30-40%?). If you do not meet these two criteria, then processor of old iPhones are running at full blast.