I think I'd go Space Grey but I bet the Silver with a black band doesn't look bad either. The only problem is I have really bony wrists so I'd think I'd have to go with the 38mm. I measured them and I seem around 165mm ish.
I'll definitely try them both on before making a decision but I'm wondering how a big of a difference the screen size and battery life will make. Will the 38mm look feminine? I've never even worn a watch before so I'm not at all knowledgeable what's fashionable about them.
It's whatever you're comfortable with really...and a lot of watches are pretty huge these days so either Apple one is kinda considered small by comparison. In any case, one trick I saw was to stick a credit card on top of your wrist where it feels kinda flat (where the watch would rest), if your wrist is about the same width either size should be fine, if smaller you'd probably want 38, 42 if larger. Mine is about the same, and both sizes looked fine to me. I ultimately went 42 cause the look of the wider Milanese loop.
Also noticed there's no option to buy a separate Space Black link bracelet. Is that coming? I'd love a Space Grey Stainless Steel but there's no way I'm dropping £800-£900.
Edit: Another question. I know the Watch relies on the iPhone for mostly everything. How close do I have to keep them?
Space black watch and bracelet are only sold together. There's (much much much) cheaper third party black metal bracelets though if you ultimately want something like that. I have the black and have contrasting bands (Milanese and white sport), I'd probably go the same route if I went space gray since they looked alright in other pictures I've seen.
It's got a decent range to the phone, but what can make it really long is if it likes your wifi network setup, then the range is as far as your whole network, iirc it communicates over the LAN rather than directly between watch-phone.
If I am listening to Apple Music, how do I change radio stations from my watch? Can I do this?
I was gonna say Siri but annoying it looks like it asks for Handoff to iPhone for that for whatever reason, hell it does it for Beats 1 even. You can do "play [whatever artist/album/etc]" and it'll search and play from the Apple Music catalog, but not radio.
I'd hope that's fixed in watchOS 2 cause that seems like a really obvious shortcoming that should be addressed.