This is more of a hate time between iOS and watchOS. iOS 9 made my 6 plus slow to a halt. I used to think that having only a year old device wouldn't show any age but Apple sure showed other wise. I now have a 6s plus and it too is slow with animations and such. Such a disgrace to have a month old phone already feel like a slug. We were promised with iOS 9 all these performance enhancements and such but yet iOS is here with lag, bugs, bugs that are worse after they patched them. Now I'm just stuck. Another point here is watchOS. When I got my Apple Watch it felt fast enough. I had to wait for certain things but never too long. watchOS 2 comes along and the polish is gone. I think something didn't tap and it tapped twice and the UI switches twice after it catches up. It being a first gen product is not an excuse. I now sit here on the fallen hopes iOS 9.2 beta where nothing is still fixed and more is broken. Same bugs reported still not fixed and same ones "fixed" are back. TL;Dr I feel let down for paying this much for a quality experience but feel like I'm experiencing android 2.0 Edit: On another note, El Capitan has really improved my performance so kudos there.