You know what... I hated the iPhone since the 3G when an update made it so slow to be unusable. Android all the way since. But then I got tired of having to install third party ROMs that vary a lot in quality, crash often, aren't updated anymore... So I bought a used 6S for 150$. Absolutely no regrets. It just works. It's not slow even on the latest iOS. It'll be hard to make me switch back to Android again. Maybe worth considering?