I'm not a big outdoor hiker or runner. Don't really swim that much. So the GPS and waterproofing features of the Series 2 are not that relevant to me. My only concern is if the Apple Watch Series 1 processor (S1P) will be as future proof as the Series 2 processor (S2). All I know is they are both dual-core. I don't really want my smart watch to get annoyingly slow after just a year or two of watchOS upgrades. Any thoughts on this?