Why on earth would they put in a less powerful battery in the 6 and then make it non removable? It's got 2550 mAh battery compared to the 2800 mAh battery I've got now in my GS4?
The 6 has a 2.1 GHz processor. Mine has a 2.5 GHz processor. There's more but that's enough. I'll probably get the SS5 when I'm eligible for an upgrade in June. It'll probably be far less than $200 by that time.