I will agree that the iPhone 6sp keeps apps in memory longer BUT for me, the 6sp also frequently kicked ACTIVE apps out of memory. On the note 5, it does kick background apps out of memory but very rarely will kick ACTIVE apps out of memory. Then I have to force close all apps and it runs good for a while, then back to the same problem..I will say that I am a very heavy user, with lots of multi tasking,and used about 22gb in the week that I had my 6sp
I posted about my experience here in case anyone was interested
http://forums.androidcentral.com/showthread.php?p=4731028
Sent from my Verizon Samsung Galaxy Note 5