So I'm finally deciding to order my apple watch now, I was debating holding off to see what Apple have in store for the next version later this year, but I've decided I'll get a series 1 for now and upgrade later on in the year. Two questions I have: 1. Could someone explain what the lack of GPS actually means? Does this only mean I won't be able to use it without a phone or is there other uses with the GPS too? Also with the series 2 GPS, how does it work without the phone with no Cellular? 2. Is the battery much worse than series 2? And also does the 42mm have a greater battery than the 38mm still? Thanks!