I hope this takes off. I was happily using a note 4 for years, occasionally buying a new battery because it allowed you to change it by removing the back (remember all the phones that used to do that?). The only reason I had to retire it was because I needed security patches but each update made the phone progressively slower. My new phone has exactly the same features and if I factory restored the note 4 it would run as fast as my new one but phone manufacturers don't exactly like that, and it's something that should change.