I bought a 38mm SS Series 3 AW as my first smart watch. I prefer the look of the SS 38mm AW over the 42. I was demoing a 42mm series 3 at Best Buy recently and it seemed noticeably faster than the 38 demo they had sitting next to it. In particular, Siri seemed to be more responsive. Has anyone else noticed a speed difference between the 38 and 42mm series 3 Apple Watches? One of the things I dislike about my 38 is that Siri and voice dictation can be annoyingly slow to respond sometimes.