I don't know if I want a small or a big one though, and I can't just go to an Apple Store to try both on... As soon as I have a chance of checking how they feel

I don't know if I want a small or a big one though, and I can't just go to an Apple Store to try both on... As soon as I have a chance of checking how they feel on my wrist, I'll think about ordering them through some unofficial channels.